In a clinical study of an allergy drug, 108 of 202 subjected reported experiencing significant relief from their symptoms. At the 0.01 significance level, test the claim that more than half of all those using drug experience relief. (Half = 0.5) a)Identify the null hypothesis, alternative hypothesis. b)Find the test statistics c)Find the critical value d)Conclusion about the null hypothesis e)State the conclusion

Q: A reporter claims that less than one in four Americans believe that Facebook acted inappropriately…

A: H0 : p =1/4 = 0.25 H1 : p <0.25

Q: College administrators at the same institution are further concerned about the differences in binge…

A: According to the given information in this question There are more than three subparts according to…

Q: In a clinical study of an allergy drug 98 of the 202 subjects reported experiencing significant…

A:

Q: Two professors at a local college developed a new teaching curriculum designed to increase students'…

A: Given info: Two professors at a local college developed a new teaching curriculum designed to…

Q: We would like to compare the proportions of Notre Dame Seniors who choose to live off-campus by…

A: The claim of the test is to test whether the proportion of seniors living off-campus is…

Q: 2. A study was conducted to examine the difference between the older and younger adult teachers on…

A: The given output is, Claim: Test whether there is a difference between the older and younger adult…

Q: Do sports drinks help prevent cramps in endurance sports? At the end of a marathon, officials will…

A: Observational study: In observational study, the individuals of the study are observed by the…

Q: A health organization asserts that the prevalence of smoking among male adults 18 years or older in…

A: The test hypotheses are: Null hypothesis: H0: p1 = p2 Alternative hypothesis: Ha: p1 > p2. Test…

Q: A school psychologist designed a study to investigate the effectiveness of three study programs. A…

A: Given information: The data of n = 30 students is provided as: Program A: 12, 10, 15, 9, 8, 12, 6,…

Q: Clinical trials involve treating flu patients with Tami flu , which is a medicine intended to attack…

A: For the given data Perform z test for one  proportion

Q: In a survey of working parents (both parents working), one of the questions asked was "Have you…

A:

Q: The average IQ for Americans is 100. Does the IQ score from the dataset significantly differ from…

A: a) Let μ denote the population mean IQ for Americans. The claim of the test is the IQ score from the…

Q: A clinical trial tested the effectiveness of bupropion hydrochloride in helping people who want to…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: In an attempt to determine why customer service is important to managers in the UAE, researchers…

A: Given Information:  Population mean (u) = 4.3 Standard size (s) = 0.574 Sample size (n) = 31  Level…

Q: A recent study randomly selected women from various countries around the world and collected…

A:

Q: Researchers in Britain asked some people about their daily coffee intake. Of the 22 people from that…

A: Of the 22 people from that group who had the highest coffee intake, nine of them reported hearing…

Q: A survey was conducted to investigate the relationship between gender (male and females) and sector…

A: We have to define null and alternative hypothesis for chi square test of independence.

Q: In a study of smokers who tried to quit smoking with nicotine patch therapy, 39 were smoking after…

A: Given Information: The number of smokers who tried to quit smoking with nicotine patch therapy,…

Q: People who experience online harassment either ignore it or respond via postings or involving…

A:

Q: A comparison between species: Biologists wish to compare the prevalence of a genetic mutation across…

A: There are two species of data which are named as Species I and Species II. The sample sizes and…

Q: A simple random sample of size n= 200 drivers with a valid driver's license is asked if they drive…

A:

Q: 2. A study was conducted to examine the difference between the older and younger adult teachers on…

A:

Q: The company that you work for requires that less than 3% (.03) of the microchips that you deliver…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: A diabetic nurse seeks to assess the prevalence of type 2 diabetes among women in a population (age…

A: In recent years, there has been a growing concern about the impact of social media on mental health,…

Q: A researcher assembled two groups of individuals suffering from symptoms of the common cold. Group A…

A: Given that, A researcher assembled two groups of individuals suffering from symptoms of the common…

Q: Researchers were interested in determining whether gender and/or the number of tours soldiers served…

A: The hypotheses for the test are given as follows: Test for gender: Null hypothesis: There is no…

Q: Suppose 242 subjects are treated with a drug that is used to treat pain and 50 of them developed…

A: Given that  n=242 , X=50 , p=20%=0.20

Q: A random sample of Americans were categorized according to their happiness and their income level.…

A: H0: Income and Happiness are independent HA: Income and Happiness are dependent

Q: A researcher surveyed 500 people. She found that the individuals who took some form of over the…

A: The study is experimental study. In this type of study , the group is subjected to some treatment…

Q: in this exercise, we are conducting many hypothesis tests to test a claim. assume that the null…

A: We are conducting many hypothesis tests to test a claim. assume that the null hypothesis is true.…

Q: Do well-rounded people get fewer colds? A study on the Chronicle of Higher Education was conducted…

A: Obtain the 99% confidence interval for the difference in the two population proportions. The 99%…

Q: A school psychologist designed a study to investigate the effectiveness of three study programs. A…

A: A sample of 30 students were randomly selected and assigned to one of the three programs. Here…

Q: According to the results of this study, are the outcomes "have a full-time job" and "enrolled…

A: Let A be the proportion of enrolled students who had a full-time job.Let B be the proportion of…

Q: According to the Center of Disease Control and Prevention (CDC), 18% of adults in the U.S. over 19…

A: The p-value is 0.0073.

Q: Two professors at a local college developed a new teaching curriculum designed to increase students'…

A:

Q: Two professors at a local college developed a new teaching curriculum designed to increase students'…

A: Given that : P = 55%  Sample size (n) = 15 X = 11 By using hypothesis testing concept ee solve this…

Q: survey was conducted at a community college of 102 randomly se udents who dropped a course in the…

A: Let A and B be the two attributes divided into r and s classes respectively and N is the total…

Q: People who experience online harassment either ignore it or respond via postings or involving…

A:

Q: Two professors at a local college developed a new teaching curriculum designed to increase students'…

A: Given: sample size(n)=16Probability(p0)=0.57np0(1-p0)=16×0.57×(1-0.57)                   =3.9216…

Q: A researcher gathered a sample of participants who volunteered for a studying of phobias. She…

A: A researcher gathered a sample of participants who volunteered for a studying of phobias. She…

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.