major videocassette rental chain is considering opening a new store in an area that currently does not have any such stores. The chain will open if there is evidence that more than 5,000 of the 20,000 household in the area are equipped with videocassette recorders (VCRs). It conducts a telephone poll of 300 randomly selected household in the area and finds that 96 have VCRs. The decision on the hypothesis test using a 3% level of significance is _____________.    a. to fail to H0 in favour of H1.   b. to reject H0 in favour of H1.   c. to accept H0 in favour of H1.   d. We cannot tell what her deci

Q: Since an instant replay system for tennis was introduced at a major​ tournament, men challenged 1424…

A: Here, first sample to be the sample of male tennis players who challenged referee calls and the…

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: 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: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1437…

A: Since we only answer up to three subparts of a problem, hence, we'll be answering the first three…

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: Suppose that in a random selection of 100colored​ candies, 29​% of them are blue. The candy company…

A: Claim: percentage of blue candies is equal to 26​% Null Hypothesis: H0:p=0.26 The percentage of blue…

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: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1417…

A: For men, The sample size is The number of calls overturned is .For women, The sample size is .The…

Q: A quality engineer is asked to determine whether less than 2% of all flasks received by its company…

A:

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: A researcher wanted to know which local brewery had the best IPA. Each participant tried a sample…

A: Given: Number of treatment m = 3   (Ore Dock, Black Rocks, and Barrel + Beam) Sample size n = 5 N =…

Q: 10 years ago, a Gallop Poll reported that 79% of people reported that they enjoy driving their car.…

A: Given: Population proportionp=0.79Number of trials(n)=1048Number of successes (x)=734

Q: A random sample of 855 births included 434 boys. Use a 0.01 significance level to test the claim…

A: Given Data: p^=xn=434855 n=855   Null and Alternate Hypothesis: H0: p=0.505 H1: p≠0.505

Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1433…

A: Given: No. of calls challenged by men, n1 =1433 Among them no. of calls overturned, x1=413 No. of…

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: A low probability value indicates a large effect. True False

A: Misconception: A low probability value indicates a large effect.

Q: Consider a sample of 45 football​ games, where 25 of them were won by the home team. Use a 0.01…

A: We conduct Z test for proportion from the given information.

Q: A national publishing house claims that 35% of all weekly magazine readers inSouth Africa read their…

A: Null Hypothesis: H0: The proportion of all weekly magazine readers in South Africa read their…

Q: A researcher wanted to know which local brewery had the best IPA. Each participant tried a sample…

A: The given data is as follows: ParticipantOre Dock (low)Black Rocks (mid)Barrel+Beam…

Q: Christine, a researcher in psychology and biobehavioral health, believes that city residents and…

A: That is, there is no evidence to conclude that there is difference between the two proportions.…

Q: A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2876…

A: n1 =  Sample of people not wearing seat belt = 2876 X1 = Number of deaths in a sample of people not…

Q: Use Excel to test whether the true proportion of complaints submitted on a Monday is different from…

A: It is given that  Population proportion, p = 20% = 0.20 Favourable cases, X = 13 Sample size, n = 50

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: The probability is the chance of occurrence of any observation can involve in the sample with equal…

Q: A large counseling center needs to evaluate their experimental program designed for divorce…

A: Null Hypothesis: H0: Special program and regular program are equally effective. Alternative…

Q: A CEO wondered if her company received either more or less complaints from its workers on Monday…

A: Answer: From the given data, Population proportion (P) = 20%                                       =…

Q: H 0 (b) For your hypothesis test, you will use a 2-test. Find the values of P and (1-p) to confirm…

A: Given that Sample size n = 220 Number of engineers rated the company "a great place to work", X =…

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: claimed that in a bushel of peaches, less than 10% are defective. A sample of 400 peaches is…

A: Given that p=10%=0.10, n=400, x=50 It is claimed that in a bushel of peaches, less than 10% are…

Q: A researcher wanted to know which local brewery had the best IPA. Each participant tried a sample…

A: Participant Ore Dock (low)Black Rocks (mid)Barrel + Beam (high)14030532424565330386443732435232838

Q: Based on these findings, can we reject the CEO's hypothesis that 80% of the customers are very…

A: Answer: n=100 p^ =73100 =0.73p=0.80 The hypothesis test for sample proportion is  H0 :p=0.80 varsus…

Q: Suppose that in a random selection of 100100 colored​ candies, 2323​% of them are blue. The candy…

A: It is given that the sample proportion of blue colored candies is 23% and the sample size is 100.The…

Q: A local college wants to see if the students in the Psychology department have Ipads at home.…

A: Suppose p is the true population proportion of Psychology students who have Ipads at home.

Q: 28% of students at a university bought lunch from the cafeteria on class days. On a recent class…

A: Givenp=28%=0.28sample size(n)=486No. of students had bought lunch(x)=149p^=xn=149486p^=0.3066

Q: It is believed that 11% of all Americans are left-handed. A college needs to know how many…

A: Given that  Sample size n =200 Favorable cases x =30 Sample proportion p^=x/n  =30/200 =0.15

Q: Christine, a researcher in psychology and biobehavioral health, believes that city residents and…

A: From the provided information, n1=109x1=59n2=108x2=72α=0.1

Q: USA Today (Feb. 17, 2011) described a survey of 1,008 American adults. One question on the survey…

A: a) The sample proportion is p-cap = 205/1008           = 0.203 b) The population proportion p is…

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

A: Given X1=412 X1=218 N1=1408 N2=740