A television program called “Cook-off” changes three of its presenters. The program was viewed by 20% of a population of 50 million. The producers want to determine if this change has affected viewing figures. From a random sample of 100 from the population, 28 said they watched the program. Carry out a suitable hypothesis test at the 5% significance level (stating the null and alternative hypotheses) to determine whether there is sufficient evidence to suggest viewing figures have changed.

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: The test statistic is (Round to two decimal places as needed.) The critical value is (Round to three…

A: A company claims that its packages of 100 candies are distributed with the following color…

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: art 1 In a program designed to help patients stop​ smoking, 235 patients were given sustained​ care,…

A: given data  n = 235p^ = 0.809α = 0.10claim : p = 0.80find null and alternative  hypothesis.

Q: 1.     write the name of the test that will conducted,  2.     state the hypotheses,  3.…

A: (Since it has been not mentioned which question so, as per our protocol we shall only answer the…

Q: According to the Center for Disease Control website, in 2011 more than 18% of high school students…

A: It is given that 150 students surveyed, 82 have smoked.

Q: In 2005, Health Canada claimed that 16.9% of Canadian adults are obese. A researcher wanted to check…

A: Given, The sample proportion is,

Q: Conduct the hypothesis test and provide the test statistic and the critical value, and state the…

A:

Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1434…

A: State the hypotheses. That is, the proportion of the men and women have equal success in…

Q: Sandra's marketing firm randomly selects 2500 adults living in the tri-state area, and asks each of…

A: Solution: State the hypotheses Null hypothesis: H0: p≤0.5 That is, the proportion of adults living…

Q: In a recent presidential election, 611 voters were surveyed and 305 of them said they voted for the…

A:

Q: In a recent court case it was found that during a period of 11 years 856 people were selected for…

A: From the provided information, Sample size (n) = 856 Sample proportion (p̂) = 0.38 Level of…

Q: o reduce the paperwork and administrative cost, a company wants to know whether mployees are…

A: We have given that  Sample size n =254  Favorable cases x =160 Sample proportion p^=x/n  =160/254 =…

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: According to the Center for Disease Control website, in 2011 at least 18% of high school students…

A: Given, p = 0.18 Of the 150 students surveyed, 88 have smoked. Use a significance level of 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: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1437…

A: Hypothesis is an assumption that is being tested.

Q: State employees have three choices for a healthcare provider: Kaiser Permanente, Blue Choice,…

A: Null hypothesis: H0: p1=p2=p3=p4. Alternate hypothesis: HA: At least one of the proportions in the…

Q: A random sample of 829 births included 430 boys. Use a 0.05 significance level to test the claim…

A: given data,n=829x=430α=0.05p^= xn=430829=0.5187claim:51.4% of newborn babies are boys.

Q: Conduct the hypothesis test and provide the test statistic and the critical value, and state the…

A: Hypotheses: H0: The distribution of colors of the candies is the claimed distribution specified by…

Q: car company believes that the percentage of residents in city ABC that owns a vehicle is 60% or…

A: Given information- Population proportion, p = 0.60 Sample size, n = 250 Significance level, α = 0.1…

Q: 5. A school administrator would like to investigate the performance of faculty in two departments…

A: Sample Size: The number of individual samples included in a study is referred to as sample size.…

Q: Conduct the hypothesis test and provide the test statistic and the critical value, and state the…

A: we want to test the hypothesis

Q: Professors collected data consisting of eye color and gender of statistics students. Among 1056…

A:

Q: Groups of people were asked if they were supporting local businesses during the pandemic. Of a…

A: The proportion of women supporting businesses = 59/220 =0.27 =p1 The proportion of men supporting…

Q: Suppose 239 subjects are treated with a drug that is used to treat pain and 53 of them developed…

A: The objective of this question is to test the claim that more than 20% of users develop nausea after…

Q: Suppose the president claims that at least 80 percent of the company's 5,000 customers are…

A: Given information: The sample size is n = 100.The number of successes is x = 73.The sample…

Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

A: Solution: 8. Let X be number people are in favor of stricter gun control and n be the sample number…

Q: According to a recent poll 53% of Americans would vote for the incumbent president.  If a random…

A: According to the given information in this question We need to apply Z test for one population…

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: According to a geographic report, in the United States, 20% of all families renting condos will move…

A:

Q: Consider a drug testing company that provides a test for marijuana usage. Among 299 tested​…

A: given data  n = 299 x = 29 claim : p < 0.10 we have to find null and alternative hypothesis.

Q: Consider a drug testing company that provides a test for marijuana usage. Among 318 tested​…

A: From the provided information, Sample size (n) = 318 From which 26 subjects were wrong that is x =…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 290 tested subjects,…

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

Q: A USA Today survey basis for report that 57% of gun owners favor stricter gun laws. Assume the group…

A: We have to find decision.

Q: QSR Magazine published the latest results of it’s annual quick-serve restaurant drive-thru study.…

A: Denote p1, p2 as the true population proportions of accurately fulfilling drive-thru orders in…

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: A University considers direct contact for donations from alumni cost effective if more than 15% of…

A:

Q: with a drug that is used to treat pain and 50 of them developed nausea. Use a 0.01

A: Here it is given that - Total number of sample (n) = 247 Sample proportion (p) = 50247=0.202 So, q =…