Answer:
We reject H0; that there is significant evidence to support that there is difference in the variation in the listening times for men and women
Step-by-step explanation:
Given that :
n1 = 10 ; s1 = 13 ; n2 = 16 ; s2 = 14 ; α = 0.1
Null : H0 : σ1² = σ2²
Alternative : H1 : σ1² ≠ σ2²
To compute the test statistic ; using the Ftest:
F-test = σ2² / σ1² = 14² / 13²
F-test = 14²/13² = 196 / 169 = 1.1597
Decision region :
Reject Null, H0 ; if
Ftest < Fcritical
F critical at:
At α/2 = 0.10/2 = 0.05
df_numerator = 16 - 1 = 15
df_denominator = 10 - 1 = 9
Using F critical calculator :
Fcritical = 3.006
1.1597 < 3.006
Since, Ftest is lesser than Fcritical, then we reject H0
HELP ME WITH THIS IM DESPERATE!
Answer:
i dont know but i think its 50
Step-by-step explanation:
Sophie has 5 pieces of string that are each 5 feet long. Cooper has 4 pieces of string that are each
3 feet long. Estimate how much more string Sophie has than Cooper has. Enter your answer in the bo
Answer:
Sophie has 12 feet more
Step-by-step explanation:
mike and sam are running laps. mike runs a lap in 5 minutes and sam runs a lap in 6 minutes. if mile and sam begin running at the same time, after how many minutes will they cross the starting line at the same time
answer:
they will never cross....
what is 48,000 rounded to the nearest ten thousand
50,000 because 8 is larger than 5 so you round up to 5 in the ten thousands place.
Write an exponential function in the form y=ab^x that goes through points (0,6) and (5, 6144)
Given:
An exponential function goes through points (0,6) and (5, 6144).
To find:
The exponential function.
Solution:
The general form of an exponential function is
[tex]y=ab^x[/tex] ...(i)
It goes through points (0,6) and (5, 6144). It means the equation must be satisfied by these two points.
Putting x=0 and y=6, we get
[tex]6=ab^0[/tex]
[tex]6=a[/tex]
Putting a=6, x=5 and y=6144, we get
[tex]6144=6b^5[/tex]
[tex]\dfrac{6144}{6}=b^5[/tex]
[tex]1024=b^5[/tex]
Taking 5th root on both sides, we get
[tex]\sqrt[5]{1024}=b[/tex]
[tex]4=b[/tex]
Putting a=6 and b=4, we get
[tex]y=6(4)^x[/tex]
Therefore, the required exponential function is [tex]y=6(4)^x[/tex].
Plz, Help me! I will give a point if you help answer! with 5 star rating, Thanks, and Brainliest!
Answer:
-4/10+(-7/10)= -1 1/10(the bottom left one)
Step-by-step explanation:
starts from 0 and subtract 4/10. From there you subtract 7/10 more.
. A football team outscored its opponents 5:3. If the opponents scored 12 points, how many points did
the football team score?
The football team scored 20 points.
I divided the total points made by the opponents (12) by 3 because of the ratio and got 4. Then, I multiplied 5 by 4 to get the football teams total amount of points.
-Ɽ3₮Ɽ0 Ⱬ3Ɽ0
A group of students were surveyed to find out if they like playing video games on a console/PC or on a phone/tablet. The results of the survey are shown below:
80 students like playing video games on a console/PC
20 students like playing video games on a console/PC but do not like playing on a phone/tablet
90 students like playing video games on a phone/tablet
40 students do not like playing video games on a console/PC
Make a two-way table to represent the data and use the table to answer the following questions.
Part A: What percentage of the total students surveyed like both playing video games on a console/PC and on a phone/tablet? Show your work and/or explain your thinking. (5 points)
Part B: What is the probability that a student who does not like playing video games on a console/PC also does not like playing on a phone/tablet? Explain your answer. (5 points)
Hey! Here is my answer for part A! I dont know part B, but i have Part A!
------------------------------------------------------------------------------------------------------∪ω∪
74% (Rounded)
I made a total of all the students, i added all of them and got 230 students in total. Then I took students who liked playing PC and Phone/Tablet, and added them which got me 170 (90 + 80). I used a calculator to find out what is the percentage for 170/230. Therefore, I rounded my conclusion to 74%.
Please help! Find x if 2(x+1)=x+5
Answer:
x=3
Step-by-step explanation:
2(x+1)=x+5
Use the distributive property to multiply 2 by x+1.
2x+2=x+5
Subtract x from both sides.
2x+2−x=5
Combine 2x and −x to get x.
x+2=5
Subtract 2 from both sides.
x=5−2
Subtract 2 from 5 to get 3.
x=3
Answer:
3
Step-by-step explanation:
2(x+1)=x+5
2x+2=x+5
2x-x+2=5
x+2=5
x=5-2
x=3
Twice a number is 17
Write it as an equation
I need the solutions
Answer:
(-1, -2)
Step-by-step explanation:
The solution is the intersection, which is at (-1, -2)
please help ASAP:solve 1 2/10 x 5=
Answer: 6
Step-by-step explanation:
1 2/10 x 5=6 hope this helps
Answer:
6
Step-by-step explanation:
1 2/10 * 5
6
The cost of seeing a movie was
$12 last year. This year a movie
ticket is $15. What is the percent of
increase from last year to this year?
HELP ME PLSSSSSS Kaitlyn is covering all faces of a tissue box cover shaped like a rectangular prism. The cover has dimensions of 9” x 5” x 3.75”. What is the total area in square inches that she will need to cover?
Answer:
168.75
Step-by-step explanation:
......
Answer:
168.75
Step-by-step explanation:
In a football league, 4 coaches are needed for every 38 players. If 84 players sign up for softball, how many coaches are needed?
Suppose that a homeowner notices a 20 percent increase in the water bill for July. The homeowner traces this increase to four sources: a running toilet, a dripping faucet, a guest who visited for two days, and a broken sprinkler head. Further study shows that the broken toilet accounts for 8 percent of the increase, the faucet 2 percent, and the visiting guest 4 percent. The homeowner concludes that the remaining 8 percent is attributable to the broken sprinkler head. What method did the homeowner use in drawing this conclusion
Answer:46
Step-by-step explanation:
Homeowner should use in drawing the conclusion is method of residues.
What is method of residues?A complex series of occurrences is removed from all known causes. The reason is supposed to be what is left over.
If a set of factors is thought to create a set of phenomena, and all but one of them matches all the phenomena, the remaining phenomenon can be attributed to the remaining factor.
A method of agreement is a way of comparing different examples of the same phenomenon under different conditions.
The method of concurrent variation states that if a specific effect occurs in a variety of settings,
Thus, homeowner should use in drawing the conclusion is method of residues.
Learn more about the method of residues here:
https://brainly.com/question/19131352
#SPJ2
1. Which of the following is the process used by plants to release excess water into the atmosphere?
A.
transpiration
B.
condensation
C.
perspiration
D.
precipitation
Answer:
A. Transpiration
Explanation:
Plants put down roots into the soil to draw water and nutrients up into the stems and leaves. Some of this water is returned to the air by transpiration.
If you know this multiple choice I think I know the answer but making sure
Answer: A
Step-by-step explanation:
Simplify the expression. -9(-7x-6)-(-6x-10)
*
i think the answer might be 69x + 64.
my work:
-9 (-7x - 6)-(-6x-10)
63x + 54 - (-6x-10)
63x + 54 + 6x + 10
= 69x + 64.
but i'm not 100% confident with this answer. maybe that's just because i hate math.
Evaluate x to the second power divided by y when x =4 and y=8.
???
Answer:
x^2 / y = 4^2 /8 = 16/8 = 2. the answer is 2.
5 less than a number is under 20
Answer:
Number = 24
Step-by-step explanation
it is the smallest possible number
Answer:
20>x-5
Step-by-step explanation:
Can someone help with this?
Answer:
Sorry I couldn't find it.Step-by-step explanation:
???????????????????????????????5 3/4 x 2 1/6 ayuda por favor
What is the purpose of the viewing and focussing system of the camera?
Answer: to get a better picture.
Step-by-step explanation:
37 1/2 is what percent of 5
Answer:
750%
Step-by-step explanation:
We know that 100% of 5 is 5,
200% of 5 is 10,
300% of 5 is 15,
400% of 5 is 20,
500% of 5 is 25,
600% of 5 is 30,
700% of 5 is 35,
800% of 5 is 40.
So 37 1/2 percent of 5 must be between 700 and 800 percent of 5. We also know that 2.5 is 50% of 5, and 35 + 2.5 = 37.5. So 37 1/2 is 750% of 5
f(x) = -x - 4
g(x) = 2x^2 + 4x + 11
Find: (f*g)(x)
Answer:
f(x)*g(x) = [tex]-2x^{3} - 12x^{2} - 27x - 44[/tex]
Step-by-step explanation:
I am assuming that * means multiplication
(f*g)(x) = f(x)*g(x)
So, f(x)*g(x) = (-x-4)([tex]2x^{2} + 4x + 11[/tex]) = [tex]-2x^{3} - 4x^{2} - 11x - 8x^{2} - 16x - 44[/tex]
= [tex]-2x^{3} - 12x^{2} - 27x - 44[/tex]
Solve. 7/3x+1/3x=4+5/3x The value of x is
Answer:
The answer is x = 4
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
~Hoped this helped~
I see you have a rob lox pfp
I play rob lox too :] whats ur user??
It’s due late tonight can some pls help me pass
Answer:
A
Step-by-step explanation:
if it starts at and next is 8 it gos up by 3 each time
Answer:
A
Step-by-step explanation:
5 +3
8 +3
11 +3
14
They are all getting increased by 3
Two brothers have ages that are consecutive odd integers. The product of their ages is 38 less than the older brother's age squared. What are the ages of the two brothers?
answer = the elder bother is 17 and the younger one is 15
constructive odd integers= 15 and 17
17×15= 255
255+38 = 293
Square root of 293 = 17
ANSWER NEEDED QUICKLY, RIGHT ANSWER WILL RECEIVE BRAINLIEST ♦️
The distance between two cities on a map is 7.4 centimeters. The map uses
a scale in which 1 centimenter is 15 kilometers. What is the actual distance
between these two cities in kilometers?
111km
the ratio is 1:15 so you do 7.4×15