A researcher finds that among 1000 people who said they attend a religious service at least once a week, 35 stopped to help a person with car trouble. Among 1200 people interviewed who had not attended a religious service at least once a month, 24 stopped to help a person with car trouble. At the 0.05 significance level, test the claim that the two proportions are different. Find each: a) Set up (including Null and Alternative Hypothesis)              b) Test Statistic c) P-value           d) Conclusion (reject or accept H0)

Q: Consider a sample of 52 football games, where 31 of them were won by the home team. Use a 0.10…

A: given data,sample size n=52x= 31p^=xn=3152=0.5962α=0.10claim that the probability  that the home…

Q: Consider a sample of 46 football games, where 30 of them were won by the home team. Use a 0.05…

A: Given data are:

Q: Consider a sample of 53 football games, where 28 of them were won by the home team. Use a 0.05…

A: Given data number of success , x= 28.0 sample size, n = 53 population…

Q: Consider a sample of 47 football games, where 25 of them were won by the home team. Use a 0.01…

A:

Q: Consider a sample of 51 football games, where 27 of them were won by the home team. Use a 0.10…

A: n=51x=27and

Q: i. Identify the null and alternative hypothesis. i. State the decision rule. i. Compute for the test…

A: a.   i.   Denote p1, p2 as the true population proportions of smokers in urban and suburban,…

Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1408…

A: It is given that 1408 referee calls in which 412 of the calls were overturned for men and 740…

Q: Perform the following hypothesis test of a proportion: HO: p = 0.125 HA: p 0.125 The sample…

A:

Q: Consider a sample of 53 football games, where 32 of them were won by the home team. Use a 0.05…

A: we have given that  sample size n=53 , favorable cases  x=32 ,alpha =0.05  sample proportion…

Q: The table below includes results from polygraph​ (lie detector) experiments conducted by…

A: a.   It is needed to check, whether subject lies is independent of the polygraph test indication.

Q: c.) What is the test statistic? (round to two decimal places) d.) What is the p-value? (round to…

A: Given that  Sample size n =254 Favorable cases x =117 Sample proportion p^=x/n  =117/254 =0.4606

Q: Which of the following p-values indicates the weakest sample evidence against the null hypothesis? O…

A: Given : here we have to find lowest p-value which indicates the weakest sample evidence against the…

Q: In​ 1997, a survey of 940 households showed that 151 of them use e-mail. Use those sample results to…

A: From the provided information, Sample size (n) = 940 151 of them use e mails that is sample…

Q: Consider a sample of 45 football​ games, where 26 of them were won by the home team. Use a 0.01…

A:

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: From the provided information, Sample size (n) = 54 Out of which 35 involved an intoxicated driver.…

Q: Consider a sample of 48 football games, where 33 of them were won by the home team. Use a 0.10…

A: n=48X=33Claim : The probability that the home team wins is greater than one- half and =0.10

Q: Determine whether the following statement is true about p-value. A small p-value indicates a high…

A: The objective of the question is to understand the relationship between the p-value and the…

Q: Consider a sample of 48football​ games, where 31 of them were won by the home team. Use a 0.01…

A: Stating the appropriate null and alternative hypotheses: The hypotheses are given below: Null…

Q: 55,000, average male's salary under 6 foot tall of $47,000, with a p-value of 0.45.  Based on that…

A: Given: p-value=0.45 We usually take the significance level as 5%, i.e, 0.05. The decision rule…

Q: The mean score on a widely freshman history examination is 75. A history teacher at a very large…

A: Given : population mean(μ)=75 Xi=test scores Dataset:

Q: b. The test statistic is z = c. The​ P-value is Choose the correct answers below: Because the…

A: Given :  sample size(n)=6963            X=number of surveys returned =1313    Here we use normal…

Q: Suppose 242 subjects are treated with a drug that is used to treat pain and 54 of them developed…

A: Solution: Let X be number of subjects developed nausea and n be the number of subjects. From the…

Q: 6. There are over 385,000 babies born each day in the entire world. The Census Bureau states that…

A: Let p be the population proportion  p^ be the sample proportion  n be the sample siz

Q: E Click on the icon to view the table of arrival delay times. What are the null and alternative…

A: Here the data is not given so not possible to find test statistics from given data only first…

Q: A sample of 2010 adults were asked in 1990 whether they smoked (yes or no). This same sample was…

A: The appropriate test is chi-square test. Decision Rule: If test statistic is larger than critical…

Q: Consider a sample of 47 football games, where 32 of them were won by the home team. Use a 0.10…

A:

Q: For married couples, is there a significant difference in data usage between the two partners on…

A:

Q: In a random sample of 315 people 90 of them were smokers. Based on the above sample test whether the…

A:

Q: Consider a sample of 50 football games, where 33 of them were won by the home team. Use a 0.05…

A: If the proportion of one sample is compared with the population proportion then the hypothesis test…

Q: Consider a sample of 45 football games, where 26 of them were won by the home team. Use a 0.05…

A:

Q: Sixty eight percent of German workers say they have a bad manager. Consider a random sample of 50…

A: Sixty eight percent of German workers say they have a bad manager. Consider a random sample of 50…

Q: Consider a sample of 47 football games, where 28 of them were won by the home team. Use a 0.01…

A: Given that  Total number of games (n) = 47 28 of them won by home team.  Sample proportion (p) =…

Q: A marketing manager for a phone company claims that 55% of children ages 8-12 have their own cell…

A: Hypothesis testing

Q: The owner of a football team claims that the average attendance at games is over 80,000, and he is…

A: Test is that whether the average attendance at games is over 80,000.

Q: According to NBA.com, the mean weight of NBA basketball players is 219.33 pounds.  A simple random…

A: Given information- Population mean, μ = 219.33 pounds Sample size, n = 9 208 210 216 220…

Q: For a random sample of 500 students aged 15-17 in the United States, the numbers of hours a week…

A:

Q: The following dataset shows the AP History scores of 10 students: 3, 4, 3, 2, 3, 5, 2, 4, 1, 2 a)…

A: We have given that  Data : 3, 4, 3, 2, 3, 5, 2, 4, 1, 2 Sample size n = 10 I want to find mean and…

Q: Do a hypothesis for the following, make sure to include and label all five steps:      Test the…

A: Critical value: The degrees of freedom is (2 – 1) ∙ (2 – 1) = 1. It is known that level of…

Q: Why do you need to know the sampling distribution of the difference between two sample means in…

A: In this case, we need to find the reason for identifying the sampling distribution of the difference…

Q: An endangered species of bird, the whooping crane, has an average egg weight of 208 grams. A…

A:

Q: The mean undergraduate cost for tuition, fees, room, and the board for four- year institutions was $…

A: Solution

Q: Explain how the P-value is obtained for a one-mean z-test in case the hypothesis test is a. left…

A: p-value:The probability value associated with a statistical test is defined as the p-value. In other…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 308 tested subjects,…

A: Given: n= 308 ,x= 28.0 p= 0.1 ,significance level(∝)= 0.1 p̂= 28.0 / 308

Q: What is the population A) The 16 tourists selected  B) Moscow attractions  C) Moscow tourists…

A: The given study is about the travel expense by tourists in Moscow. The population is: C) Moscow…

Q: Consider a sample of 55 football games, where 29 of them were won by the home team. Use a 0.10…

A: n=55X=29p^=Xnp^=2955=0.5273α=0.10

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.