Do you prefer paintings in which the people are fully clothed? This question was asked by a professional survey group on behalf of a national arts organization. A random sample of n1 = 56 people who are conservative voters showed that r1 = 42 said yes. Another random sample of n2 = 61 people who are liberal voters showed that r2 = 37said yes. Does this indicate that the population proportion of conservative voters who prefer art with fully clothed people is higher? Use α = 0.05. (a) What is the level of significance?   What is the value of the sample test statistic? (Test the difference p1 − p2. Do not use rounded values. Round your final answer to two decimal places.) (c) Find (or estimate) the P-value. (Round your answer to four decimal places.)

Q: A direct mail appeal for contributions from a university's alumni and supporters is considered to be…

A: From the provided information, Sample size (n) = 220 From which they receive monetary contributions…

Q: Only answer the questions typed: A. indicate whether it's one or two sided B. Indicate whether it's…

A: The test is to check whether more than 10% of the population sampled had completely abstained from…

Q: We would like to know if more than 43% of Spokane citizens favor an increase in the sales tax. We…

A: Given, The sample proportion is,

Q: Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 218 women,…

A:

Q: A presidential of staff's club hired a public relations firm to conduct a poll to see whether he…

A:

Q: Researchers believe that skipping breakfast can lead to a greater prevalence of fatigue in…

A: Solution : Given data: Skipped breakfast : n1 = 200  ,  x1 = 82Ate breakfast : n2 =300   , x2 =…

Q: In a survey, 31% of the respondents stated that they talk to their pets on the telephone. A…

A: Given that n =150 ,p = 0.31

Q: Do you prefer paintings in which the people are fully clothed? This question was asked by a…

A: Given: n1 = 55  r1 = 44  n2 = 63 r2 = 39  Level of significance = 0.05

Q: A company claims that its new viral vaccine is 90% effective in preventing a contagious viral…

A: Solution:

Q: given as + Choose th

A: The margin of error is the amount of random sampling error in the results of a survey. The larger…

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: Given, Nationally, 83% of Americans have earned a high school diploma.  We want to see if the…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.5 and a standard…

A: Mean = 100.5 Standard deviation = 17.5

Q: 5. A whisky brewery firm in Scotland claims that the proportion of alcohol in their new drink is at…

A: Givenn=sample size=70p^=sample proportion=0.42

Q: A research group conducted an extensive survey of 2942 wage and salaried workers on issues ranging…

A: Given Information : A research group conducted an extensive survey of 2942 wage and salaried…

Q: A researcher made a survey regarding the proportion of male and female college students who dropped…

A:

Q: A poll stated 36% of people drink coffee to combat midday drowsiness. A recent survey was taken and…

A: Givenn=48x=19p^=xn=1948=0.3958α=0.02

Q: The answer was not correct... i think they were wanting some kind of answer closer to like…

A:

Q: Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 89…

A: Given: n1=89,                       r1=20n2=83,                       r2=24

Q: . What is the probability that a student will neither do homework regularly nor will pass the ourse?…

A:

Q: A survey was conducted to assess the preference of people to reopen LA economy after the extended…

A: A survey was conducted to assess the preference of people to reopen LA economy after the extended…

Q: A direct mail appeal for contributions from a university's alumni and supporters is considered to be…

A: n=220x=37Sample proportion(p^)=xnSample proportion(p^)=37220=0.1682Population proportion(P)=0.22and…

Q: a. For this study, we should use Select an answer b. The null and alternative hypotheses would be:…

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

Q: Close Confidants and Social Networking SitesA previous exercise introduced a study in which 2006…

A:

Q: In a recent study of a random sample of 113 people, 92 reported dreaming in color. In the 1940’s,…

A: The random variable dreaming in color follows binomial distribution. The sample size is 113. The…

Q: On time A Department of Transportation report aboutair travel found that, nationwide, 76% of all…

A:

Q: A city planning board wishes to determine whether a local community has any difference in preference…

A: The two samples of 500 individuals;n1=n2=500 there were 163 positive responses in the first sample…

Q: On average, they report 6.6 hours a week going to parties, and the sample SD (or SD+) is 9 hours.…

A: Let  be the population mean number of hours a week going to parties.Given that,Population mean…

Q: Please answer number 13.

A: It is given that 43% had no children, 18% are had one child, 18% are have two children, 21% have…

Q: An article reports that in a sample of 124 nurses, 51 said that a busy workload had a positive…

A:

Q: Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 236 women,…

A: From the provided information,

Q: The mayor of a town has proposed a plan for the annexation of a new community. A political study…

A: The objective of this question is to determine whether there is enough evidence to support the claim…

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: Given,   A B C D Total Order accurate 310 262 240 123 935 Order not accurate 40 50 35 20 145…

Q: Last year at a local country club, 60% of the golfers were “full members”, 30% were “junior…

A: Given: Observed values of a sample is as follows Full members 210 Junior members 100 Guests…

Q: A research study wanted to examine whether religious belief and gender are related in their state.…

A: It is needed to test whether religious belief and gender are related in their state.

Q: A medical school claims that more than 28% of its students plan to go into general practice. It is…

A:

Q: (SR 7.19) According to a Gallup poll, 63% of concession stand workers like the smell of their…

A: Here use normal approximation because sample size is too large

Q: The Associated Press found that 730 of 1000 randomly selected adults preferred to watch movies at…

A: Null and alternative hypotheses: The hypothesis, which is pre assumed as true, tentatively settled…

Q: A telephone service representative believes that the proportion of customers completely satisfied…

A: The objective of this question is to find the standard error for the difference in two proportions.…

Q: atistic? (Test the difference p1 − p2. Do not use rounded values. Round your final answer to two…

A: Let r1 be the number of women who responded yes in favor of spending more federal tax money on the…

Q: A local school board wants to estimate the difference in the proportion of households with…

A: Given that  Sample sizes n1=40  , n2=45 Favorable cases x1=40 , x2=25

Q: A South African manufacturer of BMW cars offers a model in one of three colors: Blue, Red, or Black.…

A: Given information: There are 3 colors: Blue, Red and Black. P(Blue)=1/3 Claim: Test whether or not…

Q: The engineering department at a major university claims that 20% of its graduates are women. A…

A:

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: The value of p0 is 0.52 and the sample size n is 800.

Q: A direct mail appeal for contributions from a university’s alumni and supporters is considered to be…

A: sample size(n)=206x=21significance level()=0.10sample proportion()=

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.