The t-test is a statistical test used to determine if there is significant statistical evidence for a difference in means between two groups.
Essentially, what this means is that it's used to figure out whether or not two groups have different means. When we run a t-test, it returns to us a t-score and a P-value. P-value is derived from the t-score, and this P-value is essentially the probability that the null hypothesis would produce the observed results displayed in the question. In order to determine if we should reject or fail to reject our null hypothesis, the P-value determined by the t-test should be lower than the significance level. If the question doesn't prompt for a specific significance level (which is usually displayed symbolically as α), then we can generally use 0.05 as the significance level.
I'll admit, this whole concept is pretty confusing. Statistics is a surprisingly hard class. If you have any questions about anything I wrote here or would like me to explain any concept I mentioned further, don't be afraid to ask me!
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James is drawing a model that illustrates how magnetic reversal supports the theory of seafloor spreading and plate tectonics. How should James label the parts of the model indicated by the arrows labeled A, B, C, and D?James is drawing a model that illustrates how magnetic reversal supports the theory of seafloor spreading and plate tectonics. How should James label the parts of the model indicated by the arrows labeled A, B, C, and D?
A: "A: N, B: N, C: S, D: N"
B:"A: N, B: N, C: S, D: S"
C: "A: S, B: N, C: S, D: S"
D:"A: S, B: S, C: N, D: N"
The movement of the seafloor and the tectonic plates has been responsible for the movement of the continents. The arrows in the model can be represented as "A: S, B: S, C: N, D: N"
What are tectonic plates?The big pieces of the earth's lithosphere that move is termed the tectonic plates. The movement of the plates has been given as the theory for the formation of the continents, as well as the cause of various disasters, including earthquakes and volcanos.
The model representing the movement of the plates from the center can be given in the N and the S direction. Thus, the representation of the arrows in the model will be: "A: S, B: S, C: N, D: N"
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If you think you are a victim of medical identity theft, you should contact the
A. Internal Revenue Service (IRS)
B. Federal Trade Commission (FTC)
C. Consumer Financial Protection Bureau (CFPB)
D. Food and Drug Administration (FDA)
Answer:
B. federal trade commission
If you think you are a victim of medical identity theft, you should contact the Federal trade commision.
What is Federal trade commision?
The Federal Trade Commission has the authority to promote consumer welfare and safeguard competition in a variety of economic areas. The Commission promotes informed consumer choice and public awareness of the competitive process, enforces laws that forbid corporate practices that are anticompetitive, deceptive, or unfair to consumers, and works to achieve its goals without obstructing lawful economic activity.
In 1914, the Federal Trade Commission Act created the Federal Trade Commission.
The President appoints the five members of the Commission, with the advice and approval of the Senate, for a seven-year term. The number of Commissioners that can belong to the same political party is limited to three.
Therefore, If you think you are a victim of medical identity theft, you should contact the Federal trade commision.
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Mr. Smith's Class Performance
Mean = 70
Scores
The statewide results of a standardized math test had a normal distribution and a mean of 70. Mr. Smith's students took the same test and the graph above depicts their results.
. What does the mean score of Mr. Smith's class suggest about how well his students are performing relative to the state scores?
• What does the distribution of scores in Mr. Smith's class suggest about how well his students are performing relative to the state scores?
Frequency
The mean score of Mr. Smith class has been demonstrated to be a normal distribution.
What is mean?The mean has been given as the ratio of the average score with the total number of students participating in the test.
The mean distribution curve has been depicting the average of the smith students with the average score of the state.
The distribution curve of the state score and the Smith class score is the normal distribution curve.
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Answer: The mean is the same as the standardized statewide results and the distribution scores are different than a normal curve.
Explanation:
Electricity can be produced from a variety of fuels and methods.
(a) Although producing electricity from burning fossil fuels, such as in coal-fired power plants, is common around the world, some scientists and economists argue that where the geography is appropriate, hydroelectric power is a better method for generating electricity.
(i) Describe one advantage of using hydroelectric power plants over using coal-fired power plants.
(ii) Describe one potential disadvantage of hydroelectric power plants.
Explanation:
i) as we know fossil fuels are the main cause of pollution in most parts of the world. So hydroelectric power plant are useful as they do not cause pollution and they are environment friendly because it is produced by water.
ii) Dams can help in i) Increase Tourism
ii) It can trap sediments
Hope this helps you
Have a great day
What does standard deviation mean in psychology.
Answer:
A measure of the variability that indicates the average difference between the scores and their mean.
Explanation:
Given its narrow streets (shown in the image above), which of the following urban problems is Corfu, Greece least likely to have?
A. water pollution
B. heat island effect
C. increased surface water runoff
D. air pollution
E. solid waste
2. Which statement is a complex sentence?
After the storm subsided, I surveyed the house for damage. O
I really wanted to go to my friend's house, but I stayed home.
The house sustained some damage as a result of the storm. O
I brought lumber to fix the damage; my father brought tools.
Answer:
A.
Explanation:
1. Complex sentence: Has one independent clause and 1 (or more) dependent clauses
2. Clause: Contains a subject and verb
3. Independent Clause: Taking the clause out of the sentence would make sense as a sentence on its own.
4. Dependent Clause: Even though it has a subject and verb, it doesn't make sense as a sentence.
Not B: This is a compound sentence. It has 2 independent clauses. I know this because If you take "I really wanted to go to my friend's house" and "I stayed at home," they can be their own sentence.
Not C: This is similar to a complex sentence, so it can be trickier. It's not because "as a result of the storm" doesn't have a subject or verb so it's nto a clause.
Not D: Before and after the semicolon can be their own sentence. Because they're both independent, it's compound and not complex.
It's A: "After the storm subsided" doesn't make sense by itself, but it has a subject (storm) and verb (subsided). That makes it dependent. The other is independent because it makes sense as a sentence. Independent clause+dependent clause= complex.
Assume the economy is currently in long-run equilibrium. An increase in the money supply will affect unemployment in the short run and in the long run in which of the following ways?
A money supply go up and be inflationary in nature if the unemployment rate is below the natural rate and thus there will be high rate of unemployment.
What does it implies when the economy is in long run equilibrium?An economy that is to be in long-run equilibrium will have the real unemployment rate to be equal to that of natural rate of unemployment.
Note that a boast in the money supply will influence unemployment based on the fact that unemployment rate is bigger than the natural rate of unemployment, and thus the rate of inflation is said to be going done.
When the level of output is higher than employment output, an unemployment rate tends to increase and thus pressure is placed on increased wages and prices.
Conclusively, Note that Lower unemployment rate will lead to lower presence of workers in the companies .
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How was the solution Terry and Chris developed a win-win one?
The solution developed was that terry can do cleaning and Chris can do food shopping as a solution to completing the jobs that they both enjoy.
What is a win-win situation?This refers to a situation where everyone party involves is certain to do well or be successful whatever the case is.
Here, it is shown that Terry can do cleaning and Chris can do food shopping as a solution to completing the jobs that they both enjoy.
Therefore, that resulted in a win-win situation for both Terry and Chris because all parties in disagreement were pleased with the outcome and were able to complete their tasks more quickly.
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The process of accepting jesus as your savior has three steps. what are they?
Answer:
Salvation doesn't come from our good deeds or by doing anything special, it's a free gift from God just because He loves us so much. We need to turn away from our sins, believe that Jesus is God's Son and our Savior, and submit to Him as Lord of our lives. By doing so, we receive salvation and eternal life.
Explanation:
please consider as brainlest
Which development would most likely cause the supply of a product to
increase?
A. Government regulations increase the cost of making the product.
B. New technology allows the product to be made more quickly.
C. Companies expect the price of the product to fall significantly.
OD. Fewer workers receive the education needed to create the product.
SUBMIT
Answer:
B: New technology allows the product to be made quicker
If a product can be made quicker, you can make more products in less time, resulting in more supply/stock.
New technology allows the product to be made more quickly. The correct option is B.
What is technology?The tools, methods, and systems used to create, process, store, and exchange information, or to perform tasks that make life easier and more efficient, are referred to as technology.
Because it improves the efficiency of the manufacturing process, the development of new technology that allows a product to be manufactured more quickly can increase the supply of that product.
Lowering production costs can make it more profitable for producers to supply more product to the market.
As a result, they may increase production to meet rising demand or to take advantage of lower production costs, resulting in an increase in product supply.
Thus, the correct option is B.
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Which type of migration best describes a move from the suburbs to a nearby city?
A. Forced migration
B. Voluntary migration
C. Seasonal migration
D. Interregional migration
E. Intraregional migration
Answer:
its intra regional
Explanation:
Tiger Audio declared and paid a cash dividend of $5,725 in the current year. Its comparative financial statements, prepared at December 31, reported the following summarized information:
Required:
1. Complete the two final columns shown beside each item in Tiger Audio’s comparative financial statements.
2-a. Which account increased by the largest dollar amount?
2-b. Which account increased by the largest percentage?
1. The completion of the two final columns in Tiger Audio's comparative financial statements is as below:
2-a. The account that increased by the largest dollar amount is the Sales Revenue (by $41,000).
2-b. The account that increased by the largest percentage is the Retained Earnings (by 64%, except the income before tax, income tax expense, and net income).
How is the horizontal analysis of the two final columns in Tiger Audio's comparative financial statements performed?The horizontal analysis of the two final columns in Tiger Audio's comparative financial statements can be performed as follows:
Deduct the previous figure from the current to obtain the dollar amount.Use the dollar amount (difference) above to divide by the previous figure and then multiply by 100 to obtain the percentage change.Data and Calculations:Tiger Audio's comparative financial statements:Horizontal Analysis
Current Previous $ Amount Percent %
Income StatementSales Revenue $228,000 $187,000 $41,000 22%
Cost of goods sold 134,000 115,000 18,000 16%
Gross Profit 94,000 72,000 22,000 31%
Operating Expenses 39,000 42,000 (3,000) -7%
Interest Expense 5,000 4,000 1,000 25%
Income before Income Tax 50,000 26,000 24,000 92%
Income Tax Expense (30%) 15,000 7,800 7,200 92%
Net income $35,000 $18,200 16,800 92%
Balance SheetCash $28,000 $30,000 -$2,000 7%
Accounts Receivable, net 18,000 16,000 2,000 12.5%
Inventory 25,000 22,000 3,000 13.6%
Property & Equipment, net 139,000 125,000 14,000 11.2%
Total Assets $210,000 $193,000 17,000 8.8%
Accounts Payable 26,500 25,000 1,500 6%
Income Tax Payable 4,000 4,000 0 0%
Note Payable (long-term) 76,500 89,000 -12,500 -14%
Total liabilities $107,000 $118,000 -11,000 -9%
Common Stock (par $1) 31,000 31,000 0 0%
Retained Earnings 72,000 44,000 28,000 64%
Total liabilities & stockholders'
Equity $210,000 $193,000 $17,000 8.8%
Thus, the horizontal analysis shows the trends in the accounts in the financial statements of Tiger Audio Inc. over some comparative time.
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What will be next in sequence
Answer:
application letter for the post of accountant NIC asia
169.
a.
b.
C.
d.
e.
and
are multi-state nations.
and
were multi-state nations in the twentieth century but no longer are.
China, Germany; Ireland, Vietnam
China, Ireland; Germany, Vietnam
China, Vietnam; Germany, Ireland
China, Denmark; Germany, Ireland
Denmark, Ireland; Germany, Vietnam
Answer:
China, Ireland; Germany, Vietnam
Explanation:
A multi-state nation occurs when a nation stretched across international borders, therefore across states
China - currently a mutli-state nation:
The Nationalist party in China fought against communist forces before and after WWII but by 1949 the Communist under Mao Zedong won. The Nationalists then fled to Taiwan and claimed they were the legitimate government of China. Today, 95% of people who lin in Taiwan are Han Chinese. Therefore, the people or nation (the Chinese) are split between China and Taiwan.
Ireland - currently a mutli-state nation:
The Irish War of Indepence took place from 1919 to 1921 and resulted in Ireland’s independence from the U.K along with Ireland becoming split. In 1921 Northern Ireland was created when Ireland was partitioned by the Government of Ireland act of 1920. The majority of Northern Ireland’s population were unionists who wanted to remain with the U.K. and this act created a devolved government for the 6 northeastern counties. Today, the Irish people are divided between the Republic of Ireland and Northern Ireland which is still part of the U.K.
Germany - was a mutli-state nation in the past:
After WWII the eastern part of Germany including the 5 landers of Brandenburg, Mecklenburg-Vorpommern, Saxony, Saxony-Anhalt, and Thuringia was occupied by Soviet forces. In 1949, Germany formally split into 2 independent states: The Federal Republic of Germany (West Germany - democracy) and The German Democratic Republic (East Germany - communist). In 1961 the GDR/East Germany built the Berlin wall overnight on August 13, creating a physical border between East and West Germany. In 1989 communism fell in East Germany and the Berlin Wall was torn down the same year. The country was reunified in 1990.
Vietnam - was a mutli-state nation in the past:
The First Indochina War
help i’ll finish this im sorry
The marketing director for an ice cream company investigated whether there was a difference in preference for two new ice cream flavors—cotton candy and mango. Each participant from a large group of people was randomly assigned to taste one of the two flavors. After tasting, each person rated the flavor on a numerical scale from 1
1
to 5
5
, where 1
1
represented strongly dislike and 5
5
represented strongly like. A two-sample t
t
-interval for a difference between means (cotton candy minus mango) was constructed. Based on the interval, there was convincing statistical evidence of a difference in population mean flavor ratings, with mango having the greater sample mean rating. Which of the following could be the constructed interval?
The constructed interval for the rating of the ice cream mango and cotton candy is; C: (-1.4, 2.6).
What is the t-interval?When the sample size is small and the population standard deviation is unknown, then we will have to say that is when the t-interval is very useful.
Now, the z-interval for calculating confidence intervals becomes less reliable when the sample size is less than 30 i.e very small.
Now, since Mango the greater sample mean rating, and since each person rated the flavor on a numerical scale from 1 to 5, then we can say that the correct option is C; (-1.4, 2.6).
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why USSR invaded Afghanistan? What was its impact on this region specially Afghanistan and Pakistan
Answer:
Why USSR invaded Afghanistan?
Afghanistan Had Long Held Strategic Importance . Fearful that Tsarist Russia's expansion into Central Asia would bring it perilously close to the border of India, their imperial jewel, Britain fought three wars in Afghanistan to maintain a buffer against Russian encroachment.
It's impact on Afghanistan and Pakistan: In the brutal nine- year conflict, an estimated one million civilians were killed as well as 90,000 Mujahideen fighters and 1,800 Afghan troops. The county was left in ruins. Several million Afghan had either fled to Pakistan for refuge or had become internal refugees.
Leaders who can motivate people usually have teams with
O positive work attitudes
O a fear of change
O high absenteeism
O no need for a sense of accomplishment
♡
Leaders who can motivate people usually have teams with positive work attitudes. These attitudes are fundamental for generating confidence.
What is a leader?A leader is a skilled person who generally exhibits a positive attitude toward facing challenges and problems.
The leaders can generate confidence between the members of a team through these positive attitudes.
An excellent leader should think about the team instead of individual non-altruistic objectives.
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Leaders who can motivate people usually have teams with positive work attitudes and mindset in executing tasks.
Who is a Leader?This is defined as an individual who is in charge and convinces people to follow him/her.
Leaders who can motivate people are referred to as the good ones and usually have teams with positive work attitudes.
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The marketing director for an ice cream company investigated whether there was a difference in preference for two new ice cream flavors—cotton candy and mango. Each participant from a large group of people was randomly assigned to taste one of the two flavors. After tasting, each person rated the flavor on a numerical scale from 1
1
to 5
5
, where 1
1
represented strongly dislike and 5
5
represented strongly like. A two-sample t
t
-interval for a difference between means (cotton candy minus mango) was constructed. Based on the interval, there was convincing statistical evidence of a difference in population mean flavor ratings, with mango having the greater sample mean rating. Which of the following could be the constructed interval?
The constructed interval for the rating of the ice cream mango and cotton candy is (-1.4-2.6). The correct option is C.
What is t-interval?When the sample size is small and the population standard deviation is unknown, the T interval is useful.
The Z-interval for calculating confidence intervals becomes less reliable when the sample size is very small (n=30).
And this is where the T-interval comes in.
Thus, the correct option is C, (-1.4-2.6).
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Which of the following is true?
A)
The early arrival of spring in New Hampshire has no effect on wildlife.
B)
Rising sea levels are a possible global consequence to a change in local environments.
C)
All scientists agree that global climate change will happen rapidly.
D)
Global climate change will have no impact to life on the Earth.
complete the cross quantile puzzle by finding the specified measures of position use linear interpolation in filling the boxes disregard the decimal point for example 14.3 should be written as 143 given scores 5 7 12 14 15 22 25 30 36 42 53 65
The correct answers for position of P54=54/100(n+1) making use of linear interpolation are:
1. 30-25=52. 5(0.02)=0.13. 25+0.1=25.1Calculations and Parameters:Given the set of values given, to complete the puzzle,
Across
2. Position of D7=7/10(n+1)
=7/10(12+1)=7/10(13)=91/10=9.1Linear Interpolation1. 42+36=62. 6(0.1)=0.63. 36+0.6=36.64. Position of P65=65/100(n+1)=65/100(12+1)=65/100(13)=845/100=8.451. 36-30=62. 6(0.45)=2.73. 30+2.7=32.78. Position of P90=90/100(n+1)=90/100(12+1)=90/100(13)=1 170/100=11.71. 65+53=122. 12(0.7)=8.43. 53+8.4=61.49. Position of P9=9/100(n+1)
=9/100(12+1)=9/100(13)=117/100=1.171. 7-5=22. 2(0.17)=0.343. 5+0.34=5.34Down1. Position of Q2=½(n+1)=½(12+1)=½(13)=13/2=6.51. 25-22=32. 3(0.5)=1.53. 22+1.5=23.53. Position of P90=90/100(n+1)=90/100(12+1)=90/100(13)=1 170/100=11.71. 65+53=122. 12(0.7)=8.43. 53+8.4=61.45. Position of P40=40/100(n+1)=40/100(12+1)=40/100(13)=520/100=5.21. 22-15=72. 7(0.2)=1.43.15+1.4=16.46. Position of P52=52/100(n+1)=52/100(12+1)=52/100(13)=676/100=6.761. 25-22=32. 3(0.76)=2.283. 22+2.28=24.287. Position of P54=54/100(n+1)=54/100(12+1)=54/100(13)=702/100=7.02#SPJ1
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Is karma real
is it true those who mistreat, use or hurt others will suffer at the end?
like my ex who used and abused me and others
What will be next in sequence?
Answer:
Non-agon
Explanation:
Which of the below is an output strategy of dealing with global warming?
A. improving energy efficiency
B. reducing poverty
C. limiting urban sprawl
D. carbon capture and storage technology
E. reductions in fossil fuel use
Answer: E
Explanation:
Puberty in WOMEN is most closely related to the onset of?
a. menarche
b. menopause
c. dementia
d. conventional morality
Answer:
menarche
Explanation:
hope it helps you<3how mant joules of heat energy must be added to 5 grams of liquid water to change its temperature from 10 degrees celsius ton30 degrees celsius