Answer:
D:
Null: Pf = Ps
Alternative: Pf > Ps
Step-by-step explanation:
Hypothesis test is the test which uses the random sample data to evaluate that whether the null hypothesis to reject or accept.The null and alternate hypothesis for the given question is,
[tex]H_0:P_f=P_s[/tex]
[tex]H_a:P_f>P_s[/tex]
Hence the option D is the correct option.
Given-[tex]P_p[/tex] represent the proportion of all Friday night calls.
[tex]P_s[/tex] represent the proportion of all Sunday night calls.
What is hypothesis?Hypothesis test is the test which uses the random sample data to evaluate that whether the null hypothesis to reject or accept.
As part of investigation the police taken the random sample of the Friday night and the Saturday night phone calls.
Null hypothesis [tex](H_0)[/tex] states that the parameter of two proportion are are equal to the hypothesis value. If the proportion of all Friday night calls and proportion of all Sunday night calls is equal. Then the Null hypothesis for the investigation is,
[tex]H_0:P_f=P_s[/tex]
The alternate hypothesis states that the population parameter is smaller greater or must be different than the hypothesis value.The alternate hypothesis for the given question,
[tex]H_a:P_f>P_s[/tex]
Thus the null and alternate hypothesis for the given quyestion is,
[tex]H_0:P_f=P_s[/tex]
[tex]H_a:P_f>P_s[/tex]
Hence the option D is the correct option.
Learn more about the hypothesis here;
https://brainly.com/question/2695653
which is greater 1/4 or 3/4 ?
Answer:
3/4
Step-by-step explanation:
We have two fractions, 1/4 and 3/4. Lucky they have the same denominator :
Which is the number under the line, which means their capacity is the same amount. Now we just have to see the greater numerator (the number above the line).
So since 3 is greater than 1
Therefore 3/4 is the answer
Answer:
You answer would be 3/4
Step-by-step explanation:
3/4 is larger than 1/4.
In a college of exactly 2920 students, exactly 55 % are male. What is the number of female students?
Answer:
1305 female students
Step-by-step explanation:
Total no. of students = 2900
Percentage of students male = 55%
No. of students male = 55% of 2900
= 55/100*2900
= 1595
No. of female students = 2900 - 1595 = 1305
Answer:
1314
Step-by-step explanation:
First I found the number of male students
[tex]\frac{x}{2920} =\frac{55}{100} \\\\160600=100x\\1606=x[/tex]
Then I subtracted the number of male students from the number of total students
[tex]2920-1606=1314[/tex]
If a person walks 1/4 mile in 10 minutes, how far will that person walk in one hour?
Answer:
1.5 miles
Step-by-step explanation:
1.5 miles
Since there are 60 minutes in an hour, the person will walk 60/10 = 6 times as much in 1 hour. If that person can walk 1/4 mile in 10 minutes, she will walk (1/4)*6 = 1.5 miles in 1 hour.
Answer:
1 and 1/2 mile
Step-by-step explanation:
The equation would be 1/4 times 6/1 because 60 divided by 10 is 6
1/4 times 6/1 is 6/4
simplified the answer is 1 and 1/2
answer, show work, due today
Answer:
60%
Step-by-step explanation:
13.5/22.5
Diego is trying to find the value of x in 5 times x = 35.
Answer:
The answer is 7
Step-by-step explanation:
5x7=35
Answer:
7
Step-by-step explanation:
What you would have to do is divide the 5 and 35 to get 7
PLEASE HELP!!!!
Which equations could be used to solve
for x? Circle all that apply.
A. x – 58 = 129
B. x + 58 = 129
C. 180 – 129 − 59 = x
D. 129 – 58 = x
E. (180 – 129) – 51 + x = 180
Answer:
dang
Step-by-step explanation:
A. x – 58 = 129 yes
B. x + 58 = 129 no
C. 180 – 129 − 59 = x yes
D. 129 – 58 = xyes
E. (180 – 129) – 51 + x = 180no
hope this helps
Answer:
E
Step-by-step explanation:
What is the best first step in solving the equation 3 + 36x = 5?
Required information Skip to question A die (six faces) has the number 1 painted on two of its faces, the number 2 painted on three of its faces, and the number 3 painted on one of its faces. Assume that each face is equally likely to come up. If the die were loaded so that the face with the 3 on it were twice as likely to come up as each of the other five faces, would this change the value of P(odd number)
Answer:
The change to the face 3 affects the value of P(Odd Number)
Step-by-step explanation:
Analysing the question one statement at a time.
Before the face with 3 is loaded to be twice likely to come up.
The sample space is:
[tex]S = \{1,1,2,2,2,3\}[/tex]
And the probability of each is:
[tex]P(1) = \frac{n(1)}{n(s)}[/tex]
[tex]P(1) = \frac{2}{6}[/tex]
[tex]P(1) = \frac{1}{3}[/tex]
[tex]P(2) = \frac{n(2)}{n(s)}[/tex]
[tex]P(2) = \frac{3}{6}[/tex]
[tex]P(2) = \frac{1}{2}[/tex]
[tex]P(3) = \frac{n(3)}{n(s)}[/tex]
[tex]P(3) = \frac{1}{6}[/tex]
P(Odd Number) is then calculated as:
[tex]P(Odd\ Number) = P(1) + P(3)[/tex]
[tex]P(Odd\ Number) = \frac{1}{3} + \frac{1}{6}[/tex]
Take LCM
[tex]P(Odd\ Number) = \frac{2+1}{6}[/tex]
[tex]P(Odd\ Number) = \frac{3}{6}[/tex]
[tex]P(Odd\ Number) = \frac{1}{2}[/tex]
After the face with 3 is loaded to be twice likely to come up.
The sample space becomes:
[tex]S = \{1,1,2,2,2,3,3\}[/tex]
The probability of each is:
[tex]P(1) = \frac{n(1)}{n(s)}[/tex]
[tex]P(1) = \frac{2}{7}[/tex]
[tex]P(2) = \frac{n(2)}{n(s)}[/tex]
[tex]P(2) = \frac{3}{7}[/tex]
[tex]P(3) = \frac{n(3)}{n(s)}[/tex]
[tex]P(3) = \frac{1}{7}[/tex]
[tex]P(Odd\ Number) = P(1) + P(3)[/tex]
[tex]P(Odd\ Number) = \frac{2}{7} + \frac{1}{7}[/tex]
Take LCM
[tex]P(Odd\ Number) = \frac{2+1}{7}[/tex]
[tex]P(Odd\ Number) = \frac{3}{7}[/tex]
Comparing P(Odd Number) before and after
[tex]P(Odd\ Number) = \frac{1}{2}[/tex] --- Before
[tex]P(Odd\ Number) = \frac{3}{7}[/tex] --- After
We can conclude that the change to the face 3 affects the value of P(Odd Number)
Linda needs to come up with a 10 percent down payment on a house priced at $127,400.
How much money does she need to have saved?
Answer:
$12,740
Step-by-step explanation:
127,400 x .10 = 12,740
10% = 0.10
Teresa runs each lap in 5 minutes. She will run less than
55 minutes today. What are the possible number of laps
she will run today?
Answer:
11 laps i think
Step-by-step explanation:
mark brainliest and have a great day!
write
14/17
as a decimal rounded to the nearest tenth.
Answer:
0.8235 is a decimal and 82.35/100 or 82.35% is the percentage for 14/17.
Step-by-step explanation:
hope it helps
The decimal rounded to the nearest tenth is, 8.235×10⁻¹
What is Simplification?Simplification in mathematical terms is a process to convert a long mathematical expression in simple and easy form.
The given term is 14/17,
Simplify this term, by dividing,
14/17 = 0.823529411
The decimal rounded to the nearest tenth is, 8.235×10⁻¹.
To know more about Simplification on :
https://brainly.com/question/2804192
#SPJ2
Which equation is represented by the graph below?
answer choices are:
a. y=1/8e^x
b. y=1/2e^x
c. y=2e^x
d. y=8e^x
store A sells boxes of rice for $2.50 each
Answer:
I need more information
Step-by-step explanation:
Answer:
i need to see the full word problem to help you
Step-by-step explanation:
Could someone explain this to me ??
========================================================
Explanation:
Refer to the diagram below. I'm using the points A,B,C,D,E to help label the triangles, and to label the angles as well.
For now, let's focus on triangle DEC.
The top most angle is given as D = 65. Note how the angles D and E are opposite the congruent lines (marked with the red single tickmarks). This means that angles D and E are congruent to one another. So E = 65 as well. This is shown in the diagram below.
For now we don't know what angle C is, so we'll call it y. More specifically, we'll make y the measure of angle DCE.
For any triangle, the three angles always add to 180
y+65+65 = 180
y+130 = 180
y = 180-130
y = 50
So angle DCE is 50 degrees.
-------------------------------
Now we move onto triangle ABC.
Because angles DCE and ACB are vertical angles, this makes angle ACB 50 degrees also. Effectively, anywhere you see a 'y' in the diagram below, replace it with 50.
So triangle ABC has the three angles y = 50, y = 50 and 7x-4
We can solve for x like so
y+y+(7x-4) = 180
50+50+(7x-4) = 180
7x+96 = 180
7x = 180-96
7x = 84
x = 84/7
x = 12
This points to choice C as the final answer.
Javier says that when you add a positive and a negative number, the sum is always
negative. Is Javier's statement true or false? Explain your reasoning.
Hint: Try making an equation that is true and one that is
false.
Answer:
False
If the positive number is greater than the negative, then it will stay positive.
say the question is 5+ -3.
The answer would be 2
Find mZB in the parallelogram.
B
С
51°
A
D
7
mZB=
Answer:
plzz show me the diagram otherwise I can't help you sorry!!!!
remember reality is an illusion the universe is a hologram buy gold bye
Answer: Say what is this
Answer:
this is possibly real so good luck
Step-by-step explanation:
Subjective probability has little use in the real world.
True
False
Answer:
false
Step-by-step explanation:
The pool shown below is drawn to scale. If the actual diameter of the pool is 16 feet, then what is the actual depth of the pool?
Answer:
10.67
Step-by-step explanation:
I need help, Ting wei has 8 kittens and he feeds them a total of 22 ounces of food and ting feeds each kitten a equal amount of food. What is the answer?
Answer: 2.75 ounces
Step-by-step explanation: Good luck! :D
You divide 22 and 8, which equals 2.75!
Answer: 2.75 ounces
Step-by-step explanation:
If the total amount of food is 22 ounces, and Ting Wei feeds his 8 kittens equal amounts, then you should divide 22 by 8.
22 / 8 = 2.75 ounces per cat
I need help with this one also
Rachel has 75 books.18 of the books are comics books. The rest of books are novels.
a. What percentage of the books are novels?
b. What percentage of her books are comics?
Answer:
Novels: 24% Comics: 76%
Step-by-step explanation:
Divide 18/75= 0.24= 24% to find percent of novels
Subtract 100-24= 76 to get the remaining percent
Or
Subtract 75-18= 57 (to get the number of comics she has)
Divide 57/75= 0.76= 76% to find percent of comics
Hello Brainly pleas help
Answer:
can you take a better pick
Step-by-step explanation:
I need to find the width of the rectangle
Stephen wants to purchase a laptop, but he does not have enough money in his bank account to pay for one.
Which of these is not an option for Stephen?
Answer:
A
Step-by-step explanation:
If you have no money in the bank the debit card won't work
Answer:
its C
Step-by-step explanation:
simplify using order of operations
5.3-6.3+5²
IT SHOULD BE 24 IF NOT IM SRRY
Answer:
5.3−6.3+52
=−1+52
=−1+25
=24
Mildred has three little girls, Margo, Delilah, and Gertrude. If she randomly chooses one of them to clean the kitchen after dinner, what is the probability that she will NOT pick Gertrude
Alex is thinking of a number.
She divides it by 100
The answer has one more in the hundreds column than in the
tens column
The total of the digits is 15
What could the number be?
terri wrote the system of linear inequalities
Question: Terri wrote the system of linear inequalities.
-3x - 3y > -18
-X<-y
Select all of the ordered pairs that are part of the solution set for this system of linear inequalities.
A: (-1,5)
B: (2, 4)
C: (3, 3)
D: (4.6)
E: (5,2)
Answer: A,b,d
What is the algebra representation of the
transformation in the diagram
below?*
Answer:
Abstract
We give a recursion formula to generate all the equivalence classes of connected graphs with coefficients given by the inverses of the orders of their groups of automorphisms. We use an algebraic graph representation to apply the result to the enumeration of connected graphs, all of whose biconnected components have the same number of vertices and edges. The proof uses Abel’s binomial theorem and generalizes Dziobek’s induction proof of Cayley’s formula.
Answer:
180° rotation about the originStep-by-step explanation:
As per diagram, the coordinates of the points changed:
(x, y) → (-x, -y)This rule is 180° rotation about the origin