In a recent study, researchers found that 31 out of 150 boys aged 7-13 were overweight or obese. On the basis of this study can we conclude that more than 15% of the boys aged 7-13 in the sampled population are overweight or obese? Use a 5% level of significance. Give each of the following to receive full credit: 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value. You MUSTshow your work to receive full credit. Partial credit is available

Q: 1) A sample of 532 Peanut Butter M&M's contains 74 yellow candies; write a 95% confidence statement…

A: In this case, the confidence level is 95%. The 95% confidence interval for the proportion/percentage…

Q: Suppose 247 subjects are treated with a drug that is used to treat pain and 55 of them developed…

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

Q: In a recent​ poll, 810 adults were asked to identify their favorite seat when they​ fly, and 495 of…

A: Givenn=810p=495p^=xn=495810=0.611p=0.5α=0.01

Q: % of According to a book published in 2011, 45% of the undergraduate students in the United States…

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

Q: Suppose 234 subjects are treated with a drug that is used to treat pain and 55 of them developed…

A: Here, the claim of the test is that more than 20% of users develop nausea. This is representing in…

Q: A committe that is stufying employer-employee relations proposed that each employee would rate his…

A: Solution: Let X1 be the of number of office personnel are in favor of the proposal, n1 be the sample…

Q: Identify the null and alternative hypotheses for this test. Choose the correct answer below.

A: Here Given  Sample size=n=212 X=54 Claim-More than 20 % of user develop nausea.

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

A: Solution: The observed count table is    Did not lie  Lie Row Total  No  11 20 31 Yes 41 14…

Q: In his book, "The Signal and the Noise," Nate Silver analyzed 733 predictions made by experts…

A: As per our guidelines we are supposed to answer only 3 sub-parts of any one question Hence I am…

Q: Suppose 212 subjects are treated with a drug that is used to treat pain and 52 of them developed…

A: Correct answer: Option (B)

Q: Suppose 204 subjects are treated with a drug that is used to treat pain and 55 of them developed…

A:

Q: 4 samples from 4 populations are given, then what is the probability of getting at least one Type 1…

A: Given,  P(Type 1 error) = 0.05 ( at 95% confidence level given) Let Random variable X = no samples…

Q: A magazine reported that 47% of Canadians are confident they will take a winter vacation at some…

A: Given that  Sample size n =65 Favorable cases x =27 Sample proportion p^=x/n  =27/65 =0.4154 NOTE:-…

Q: A study involved identical twins where one of the twins smoked and the other twin did not smoke.…

A: 1). The hypothesis can be constructed as:Null hypothesis, H0: Smoking and heart disease are…

Q: Suppose 208 subjects are treated with a drug that is used to treat pain and 50 of them developed…

A: sample size(n)=208x=50sample proportion(p^)=xn=50208≅0.2404significance level(α)=0.05

Q: Consider a drug testing company that provides a test for marijuana usage. Among 250 tested subjects,…

A: The claim is that less than 10 percent of the test results are wrong.

Q: A 2012 Gallup poll surveyed Americans about their employment status and whether or not they have…

A: The task is to check for the association between diabetes and employment status. The test will by…

Q: In a recent study, researchers found that 40 out of 250 boys aged 7-13 were overweight or obese. On…

A: 1) Null and alternative hypotheses: The hypotheses for the test is given below. Null hypothesis: H0:…

Q: The report "Digital Democracy Survey"t describes a large national survey. In a representative sample…

A: Given,  sample size=700 level of significance=0.05 sample proportion, p=45%=0.45   Since the sample…

Q: According to the US Bureau of labor statistics, 7% of US female workers between 16 and 24 years old…

A: The hypotheses are given below: Null hypothesis: H0:p=0.07. Alternative hypothesis: H1:p≠0.07. Since…

Q: In a program designed to help patients stop smoking, 181 patients were given sustained care, and…

A: Given,sample size(n)=181sample proportion(p^)=0.807population proportion(P)=0.80and α=0.05

Q: Determine the test statistic. χ2=   Determine the​ P-value of the test statistic. ​P-value=   Do the…

A:

Q: In a recent New York City marathon, 25,221 men finished and 253 dropped out. Also, 12,883 women…

A: State the hypotheses.   Let p1 denotes the proportion of men finished Marathon. Let p2 denotes the…

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

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

Q: ppose 245 subjects are treated with a drug that is used to treat pain and 53 of them developed…

A: GIVEN DATA,n=245x=53p^=xn  =53245  =0.2163claim:p>0.20α=0.10we have to complete the hypothesis…

Q: I need help answering the question of what is the conclusion based on the hypothesis test? And then…

A:

Q: For the same sample data and null hypothesis, how does the P-value for a two-tailed test of ?…

A: p-value  more advanced concept than level of confidence also alpha. But the area distribution of p…

Q: random sample of 841 births included 428 boys. Use a .10 significance level to test the claim that…

A: Given : Claim : 51.3​% of newborn babies are boys.

Q: In another Harris poll, adults were asked if they are in favor of abolishing the penny. Among 200…

A: From the given information,                        Sample size (n) =200 Probability of success…

Q: In a survey of 630 randomly selected U.S. companies, 535 reported that they performed drug testing…

A: 1) Denote p as the true percentage of U.S. firms that drug-tested last year.

Q: Do the needs of patients in the emergency room differ for those who come by car vs. those by…

A: There are two categorical variables which are vehicle and Emergency room. Vehicle has 2 types and…

Q: Random samples of communities in western kansas gave the following information regarding the rate of…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: 6. A manufacturer advertised the median life of an aircraft spark plug as 800 service hours. The FAA…

A: Given information: Sample size(n) =50. Number of positive signs(X+)=12. Number of negative…

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

A: A chi-square test can be used to test the dependence of two categorical test called chi-square test…

Q: Select the most appropriate response. If a null hypothesis is rejected at a 1% significance level,…

A: According to the given information

Q: In a recent study, fine motor skills were measured in a sample of kindergarteners before and after 7…

A: 1. Null and alternative Hypothesis for the test: Denote μ1 as the true mean motor skills of…

Q: 2. In a study of pregnant women and their ability to correctly predict the sex of their baby, 59 of…

A:

Q: Researchers are interested in whether rearing conditions lead to aggression in laboratory animals.…

A: (1) State the hypotheses. (2)   Determine the type of test used.   The type of test used is One way…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 33%. Given the…

A: We have given that  Sample size n = 2106  Favorable cases x = 656 Sample proportion p^=x/n    Note:…

Q: o test the fairness of law enforcement in its area, a local citizens’ group wants to know whether…

A: Given:   Ticketed  Not ticketed Men  21 173 Women 37 169

Q: Suppose 218 subjects are treated with a drug that is used to treat pain and 52 of them developed…

A: The appropriate Null and Alternative Hypotheses are given below:   From the given information, the…

Q: A random sample of 400 people is selected from Atlantic Canada. They are asked about their views on…

A: According to the given information, we have Given that a random sample of 400 people is selected…

Q: Identify the null hypothesis, alternative hypothesis, test statistic, p-value(s), c about the null…

A: Sample size n =11000 Favorable cases x =5720 Sample proportion p^=x/n  =5720/11000 =0.52

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.