Since an instant replay system for tennis was introduced at a major​ tournament, men challenged 1415 referee​ calls, with the result that 425 of the calls were overturned. Women challenged 755 referee​ calls, and 210 of the calls were overturned. Use a 0.05 significance level to test the claim that men and women have equal success in challenging calls. Complete parts​ (a) through​ (c) below.
a. Test the claim using a hypothesis test.
Consider the first sample to be the sample of male tennis players who challenged referee calls and the second sample to be the sample of female tennis players who challenged referee calls. What are the null and alternative hypotheses for the hypothesis​ test?
A.
H0​: p1=p2
H1​: p1≠p2
B.
H0​: p1≠p2
H1​: p1=p2
C.
H0​: p1=p2
H1​: p1 p2
F.
H0​: p1≤p2
H1​: p1≠p2
Identify the test statistic.
z=nothing
​(Round to two decimal places as​ needed.)
Identify the​ P-value.
​P-value=nothing
​(Round to three decimal places as​ needed.)
What is the conclusion based on the hypothesis​ test?
The​ P-value is
▼
less than
greater than
the significance level of α=0.05​, so
▼
reject
fail to reject
the null hypothesis. There
▼
is not sufficient
is sufficient
evidence to warrant rejection of the claim that women and men have equal success in challenging calls.
b. Test the claim by constructing an appropriate confidence interval.
The 95​% confidence interval is nothing ​(Round to three decimal places as​ needed.)
What is the conclusion based on the confidence​ interval?
Because the confidence interval limits
▼
include
do not include
​0, there
▼
does
does not
appear to be a significant difference between the two proportions. There
▼
is sufficient
is not sufficient
evidence to warrant rejection of the claim that men and women have equal success in challenging calls.
c. Based on the​ results, does it appear that men and women may have equal success in challenging​ calls?
A.
The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that women have more success.
B.
The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that men have more success.
C.
The confidence interval suggests that there is no significant difference between the success of men and women in challenging calls.
D.
There is not enough information to reach a conclusion.

So sánh tư tưởng kinh tế và học thuyết kinh tế ?

If we wanted to explore the idea that mother's smoking might explain the variation in birth weight, what visualization might be helpful to us?

briefly explain why the primary, secondary, tertiary and quanternery sectors are important in society​

The valves in the heart open and close to move blood in between heart chambers. O a) three directions O b) two directions O c) four directions d) one direction

Which of the following is the correct equation for photosynthesis?

Which expression is equivalent to x2 - 12x + 11?
O (x+11)(x + 1)
O (x - 11)(x+1)
O (x + 11)(x - 1)
o (x - 11)(x - 1)

A large company is interested in opening an on-site gym for the employees and would like to know what hours the employees would prefer to have the gym open.

Which data collection method would provide an unbiased sample?

a.)
Emailing a questionnaire to the employees
b.)
Asking all employees who work from 8am - 5pm
c.)
Posting a request for survey volunteers in the company's breakroom
d.)
Asking five random employees from each shift

Bạn hãy phân biệt Market Targeting và Target Marketing

THIS IS AN ECONOMICS QUESTION
TRUE OR FALSE
The law of demand says that as the income of the consumer changes the demand will change in direct proportion to the income change.

THIS IS AN ECONOMICS QUESTION

Several factors are implicit in determining the growth trend for an economy. List at least three of these factors and explain how they affect the growth rate of an economy.

Six Different statistic books,seven different economics books are arranged on a shelf.How Many Diiferent Arrangements are possible if: 1.The books in each particulare subject must all stand together?​

You a learning Facilitator for Natural Sciences at your School you have experienced a Steep decline in the performance for grade 12 learners at your school - Explain how you will go about assisting educators under your care to improve learner performance by Conducting a workshop in which you teach them about Intergrating the following & basic skills in their lesson presentation. The skill of probing question the skill of explaining and the skill of reinforcement and skill of reinforcement. ​

pls help! I need the answer fast!

Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than parts per million. It was found that the mean amount of carbon monoxide in the air for the random sample of cities is parts per million and the standard deviation is parts per million. At ​, can the claim be​ supported? Complete parts​ (a) through​ (e) below. Assume the population is normally distributed.

1. Country
Female
Male
India
64
62
Norway
82
77
Bolivia
66
62
Ghana
59
58
Austria
82
76
South Africa
56
51
United Kingdom
81
76
Myanmar
63
57
China
74
70
Panama
77
72
2.
Create a scatter plot for the data on the grid. Identify any clusters or outliers.

3 tips that would use to advise future students who are perparing for ACT

A Sink contains exactly 12 liters of water. If water is drained from the sink until it holds exactly Gliter of water less than the quantity drained aitay, how many liters of water were drained away?​

THIS IS AN ECONOMICS QUESTION

When economists and policy makers talk about full employment, they do not mean 100 percent employment, rather they mean reaching a certain point that still leaves a portion of the labor force unemployed. Why is this the case and what are the kinds of unemployment that exist that do not allow us to reach 100 percent employment?

THIS IS A ECONOMICS QUESTION
True or False
A market system sees its primary economic goal the goal of equity.

A box of nine iPhone 5C cellphones (the iPhone “for the colorful”) contains two yellow cellphones and seven green cellphones. (a) If two cellphones are randomly selected from the box, without replacement (the first cellphone is not returned to the box after it is selected), what is the probability that both cellphones selected will be green? (b) If two cellphones are randomly selected from the box, without replacement (the first cellphone is not returned to the box after it is selected), what is the probability that there will be one yellow cellphone and one green cellphone selected? (c) If three cellphones are selected, with replacement (the first cellphones are returned to the box after it is selected), what is the probability that all three will be yellow? (d) If you were sampling with replacement (the first cellphone is returned to the box after it is selected), what would be the answers to (a) and (b)? 3

Hola es para hoy por favor ayudenme!!!!!!

Dialogue between Michael and an educator about his lifestyle and his Choice of studying at an FET College and eating habits
​

Which behavior would best describe someone who has good communication skills with customers ? a) Following up with some customers b) Talking to customers more than listening to them c) Repeating back what the customer says d) Interrupting customers frequently

how did dinosaurs die (worng answers only)​

Cara has just come in for her morning shift, but the sales floor is a mess. Looks like the night crew didn't clean up. She groans, but then she cleans the displays before the customers come. If you don't, who will? What good problem-solving skills do you display? a) seek advice when necessary b) be open to seeing new perspectives O c) have a solution-oriented attitude 4. o d) not be afraid of making mistakes

Question 1 (1 point)
A ball rolling downhill has both potential and kinetic energy.

True

False

..but as he drove his lance-point into the sail the wind whirled it round with such force that it shivered the lance to pieces, sweeping with it horse and rider, who went rolling over on the plain, in a sorry condition.

Which definition matches the use of the word shivered in in the excerpt?

A. Stuck
B.Swung
C.Splintered
D. Surrenderd