Test the following claims using the P-value method of hypothesis testing.   An article in a journal reports that 34% of American fathers take no responsibility for child care. A researcher claims that the figure is higher for fathers in the town of Littleton. A random sample of 234 fathers from Littleton yielded 96 who did not help with child care. Test the researcher's claim at the 0.05 significance level.

Q: A music teacher knows from past records that 60% of students taking summer lessons play the piano.…

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Q: Test the claim using a hypothesis test.

A: Let We have given a proportion of males and females. so we have to use the proportion of the…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 349 tested subjects,…

A: The following information has been provided: n=349x=29p=0.1

Q: drug testing company that provides a test for marijuana usage. Among 345 tested​ subjects, results…

A: Given: The given test is a left-tailed test. x=29, n=345, p0=0.10 The formula and calculation of the…

Q: According to a Pew Research poll conducted in March 2022, 61% of U.S. adults say abortion should be…

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Q: If a hypothesis is not rejected at the 5% level of significance, it will ______. Select one: A.…

A: According to the given information  If the p value is less than or equal to the level of…

Q: Many people believe that criminals who plead guilty tend to get lighter sentences than those who are…

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Q: A research group conducted a survey about church attendance. The survey respondents were asked about…

A: Given Information: Significance level α=0.05 H0: Church attendance is independent of age. Ha: Church…

Q: Assume that you plan to use a significance level of a = 0.05 to test the claim that p1 = P2. Use the…

A: The sample size of PG-rated movies, n1=50 The ticket sales are 41%. i.e. The sample proportion,…

Q: A research group conducted a survey about church attendance. The survey respondents were asked about…

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Q: Is there an association between teenagers with Back pain and Gender? The study was also conducted…

A: It is needed to test, whether there is an association between teenagers with Back pain and Gender.

Q: Administrators at the stock exchange claim that only 10% of all companies report incorrect profits,…

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Q: What are the null and alternative​ hypotheses? b. What is the test​ statistic? c. What is the​…

A: p=24%=0.24 , n=440+162=602 , X=162  Note: According to bartelby question answer guidelines an expert…

Q: According to the most recent General Social Survey, 70% of adults watch TV nightly. A researcher…

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Q: Historically, the percentage of residents of a certain country who support stricter gun control laws…

A: The percentage of residents of a certain country who support stricter gun control laws is 54​%.…

Q: Many people believe that criminals who plead guilty tend to get lighter sentences than those who are…

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Q: . Use a 0.05 significance level to test the claim that among​ couples, males speak fewer words in a…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: An antifungal medication was applied to the skin of 8 adult subjects. One hour later the amount of…

A: It is given an antifungal medication was applied to the skin of 8 adult subjects. One hour later the…

Q: Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A.…

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Q: According to the most recent General Social Survey, 70% of adults watch TV nightly. A researcher…

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Q: A newsletter publisher believes that over 33% of their readers own a laptop. For marketing purposes,…

A: Given that  Claim: Over 33% of their readers own a laptop.  Decision : Reject the null hypothesis.

Q: A newsletter publisher believes that over 63% of their readers owns a Rolls-Royce. For marketing…

A: Given information: The claim is the percentage is over 63%. The level significance is α=0.10. The…

Q: In a random sample of males, it was found that 22 write with their left hands and 209 do not. In a…

A: Given that,sample one, x1 =22, n1 =(22+209) = 231, p1= x1/n1=0.0952sample two, x2 =67, n2 =(67+469)…

Q: If the level of significance for a test for independency was 5% and the p-value was 0.03, what would…

A: Given,   P-value = 0.03 Level of significance = 0.05   The objective is to find the conclusion.

Q: e claim that the type of crime is independent of whether the criminal was a stranger. ick here to…

A: Solution: Claim: The type of crime is independent of whether the criminal is a stranger.

Q: At least one of the answers above is NOT correct. An Office of Admission document claims that 55.4%…

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Q: We are interested in testing whether the proportion of American adults who mostly drink diet soda…

A: X=485, n=2027, level of significance ɑ=0.05 ,p=25%

Q: The American Library Association claims that at most 67% of library patrons actually borrow books.…

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Q: In an experiment to study the relationship between hypertension (high blood pressure) and snoking…

A: a) This is a purposive study as Researchers use purposive sampling when they want to access a…

Q: According to the most recent General Social Survey, 70% of adults watch TV nightly. A researcher…

A: n=400, p=70% , x=276

Q: unions. At the 10% significance level, do the data provide sufficient evidence to conclude that the…

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Q: A clinical trial tests a method designed to increase the probability of conceiving a girl. In the…

A: Given,   The sample proportion is,

Q: n​ 1997, a survey of 800800 households showed that 132132 of them use​ e-mail. Use those sample…

A: a. Here, H0: p =0.15 Vs Ha: p >0.15, Here, the sample size is, n = 800; sample proportion,…

Q: health provider saw that 48% of their members received their flu shot in recent years. The health…

A: Hypothesis testing plays a major role in research and development. To diagnose the underlying cause…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 308 tested subjects,…

A: Given: n= 308 ,x= 28.0 p= 0.1 ,significance level(∝)= 0.1 p̂= 28.0 / 308

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.