A golf instructor wants to test the following claim: of all golf students in the United States, 65% need the most help with short game shots, 22% need the most help with approach and swing, 9% need the most help with driver shots, and 4% need the most help with putting. A random sample of golf students finds that 276 need the most help with short-game shots, 99 need the most help with approach and swing, 42 need the most help with driver shots, and 18 need the most help with putting. Test the claim at σ = 0.10.

Q: ording to the Bureau of Labor Statistics (BLS), the median weekly earnings for men in the sales and…

A: Given data :  $627, $617, $732, $735, $639, $569, $494, $566, $648, $767, $683, $604, $727, $896,…

Q: 6.9, 6.9, 6.7, 7.8, 6.1, 7.2, 7, 7.5, 6.7, 6.6, 7.1, 7.9, 6.4, 7.3, 7, 7.3, 7.4, 7.4, 7.6, 7.2, 7,…

A: Given that data  6.9, 6.9, 6.7, 7.8, 6.1, 7.2, 7, 7.5, 6.7, 6.6, 7.1, 7.9, 6.4, 7.3, 7, 7.3, 7.4,…

Q: central airlines claims that the median price of a round-trip ticket from chicago, illinois, to…

A: Sample size(n)=25 Median price=606 The number of tickets below $606 =11

Q: Psychologists tend to believe that there is a relationship between aggressiveness and order of…

A: It is required to find the probability that a student is aggressive, given that they are firstborn.

Q: Parents are often faced with the decision of whether to keep a sick child home from school. Many…

A: Given that, Parents are often faced with the decision of whether to keep a sick child home from…

Q: “Are Women Really More Talkative Than Men?” is the title of an article that appeared in the journal…

A: for the difference in means between men and women in the number of words uttered, follow these…

Q: If you use the Internet, have you ever paid to access or download music? This was one of the…

A: The sample size = 1003 From the sample, the information we have, No. of adults do not use internet =…

Q: You are interested in whether level of education influences a person's exposure to the media. You…

A: The experiment is aimed to find whether the level of education influences a person's exposure to the…

Q: a) Verify the requirements for the confidence interval: b) Confidence Interval: c) Interpret the…

A:

Q: 6) A researcher wanted to investigate if gender and preferred colour were independent. The data…

A:

Q: Construct a 90% confidence interval for the true difference between the mean amounts of time spent…

A:

Q: yberbullying In 2018, the Pew Research Center did a study on cyberbullying. A sample of 743 teens…

A: Givensample size(n)=743No.of teend were considered a target of…

Q: Many predictions for the winner of the 2008 Super Bowl were incorrect. According to The Arizona…

A: The correct answers are  B) Strength of the schedule. C) Past wins and losses and the teams…

Q: Sleep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep.…

A: It is given that n=409 and x=21.

Q: Of 41 bank customers depositing a check, 22 received some cash back. (a) Construct a 90 percent…

A: Given data,Number of customers n=41Customers received cash abck is =22Construct a 90% Confidence…

Q: In the most recent Rasmussen Report on congressional performance, a random sample of registered…

A:

Q: A fall survey of 2 and 4 year college students showed that of 167,000 students who responded, 65,130…

A:

Q: A poll done by Newsweek indicated that 13% of Americans have seen or sensed the presence of an…

A: a) Here the random variable which is ( is the proportion of people who have seen and sensed the…

Q: Bryan is conducting research on personality and health behaviors of college students. If he asks…

A: According to the given information, we have Given that Bryan is conducting research on personality…

Q: based on the z scores would a 25 to 34 household or a 45 to 54 household be more likely to spend…

A: From the obtained results, the z-score for 25 to 34 households is 1.90 and the z-score for 45 to 54…

Q: of Male Adolescent (aged 15 to 19). The respondents were randomly assigned to answer the survey…

A: We see that males were asked questions about their sexual behavior in two different ways, i.e,  A…

Q: Sierra College students enrolled in an online Elementary Statistics course were asked to participate…

A: Given:   Desktop computer 31 laptop computer 113 Smart phone 6 Tablet 3 Total 153

Q: a bank analyst wants to ask customers who have a mortage with the bank about the customers…

A: If all the units in a sample has equal chance of being selected, then it is called simple random…

Q: Cyberbullying In 2018, the Pew Research Center did a study on cyberbullying. A sample of 743 teens…

A: Given: Sample size, n = 743 (a) Proportion = 446743=0.60026 First of all check the conditions of…

Q: A study published in The Lancet described how researchers in Sweden followed people with and without…

A: Step 1:Given data :  YesNoTotalsType 1623698Type 2733164897No…

Q: a survey conducted by a website, employers were asked if they had ev were dressed inappropriately. A…

A: Answer The population proportion [p] = one-third = 1/3 ~ 0.3333The favorable cases [x] = 973The…

Q: versity is trying to determine how many of their students have watched a bystander intervention…

A: Given: Total number of students = 3500 Number of students included in the survey = 1050 Percentage…

Q: It is often useful for retailers to determine why their potential customers choose to visit their…

A: Given Information :  It is often useful for retailers to determine why their potential customers…

Q: The number of students who involved in only two of these activities is .... the number of students…

A:

Q: Assume that 1500 births are randomly selected and 760 of the births are girls. Use subjective…

A: Given Information: 1500 births are randomly selected and 760 of the births are girls. Use…

Q: The recidivism rate for convicted sex offenders is 16%. A warden suspects that this percent is…

A: Given : x = 72 n = 378 p^ = xn p^ = 72378 p^ = 0.191 α = 0.1 a) For this study, we should use…

Q: According to the Vivino website, the mean price for a bottle of red wine that scores 4.0 or higher…

A:

Q: According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft,…

A: Solution: Let X be number of complaints of identity theft and n be the sample number of customer…

Q: You are interested in whether level of education influences a person's exposure to the media. You…

A: Solution: From the given information, Here, it is needed to identify the two control variables that…

Q: a study is conducted to access the impact of caffeine consumption, smoking, alcohol consumption, and…

A: Given data, p=40%=0.4 n=8 Let X be event that they consume caffiene and smoke. P(X<=6)=?

Q: Step 2 of 3 :   Compute the value of the test statistic. Round your

A: claim :  the percentage of commercial truck drivers who suffer from sleep apnea is not 3.1%simple…

Q: A scientific study was conducted to determine the hours of sleep that college students get per…

A:

Q: 1. A Pew Poll taken in 2010 surveyed 830 randomly selected people ages 18 – 29, and found that 166…

A:

Q: In a study of 203 young male/female couples, each partner privately was asked whether they had ever…

A: Probability of an event is computed by taking the ratio of number of favourable outcomes to total…

Q: A transportation engineer at OSU conducts a study on bus ridership to the 14th and Monroe bus stop…

A: Systematic sampling: Systematic sampling involves of first considering a starting point for…

Q: Cyberbullying In 2018, the Pew Research Center did a study on cyberbullying. A sample of 743 teens…

A: We have given that,  Favorable cases (X) = 438 and sample size     (N) = 743 Then,  We will find the…

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.