A national publishing house claims that 45% of all weekly magazine readers in South Africa read their publication. Test this claim at the 5% significance level, if a survey found that 205 out of a random sample of 500 magazine readers said that they read the relevant publication. Remember to use the five steps in the hypothesis testing procedure for the answer

Q: A real estate broker’s newsletter says the average price of a house in a metropolitan area is…

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Q: The p-value for a hypothesis test turns out to be 0.08621. At a 5% level of significance, what is…

A: Decision rule : Reject H0 if P-value  <  α

Q: the difference in the null hypothesis and the alternative hypothesis?

A: In testing of hypothesis, sometimes exact sampling distribution of the test statistic can be…

Q: Last year, 46% of business owners gave a holiday gift to their employees. A survey of business…

A: Given: population proportion(p)=0.46sample proportion(p^)=0.35sample size(n)=60

Q: In a survey conducted amongst a random sample of 180 customers, the following shopping frequencies…

A: The manager of a large supermarket in Polokwane believes that 25% of their customers shop for…

Q: The p-value for a hypothesis test turns out to be 0.03197. At a 9% level of significance, what is…

A: The decision rule of the hypothesis testing is as follows: If p-value ≤ α, then reject the null…

Q: If the P-value of a hypothesis test is 0.103, what would your decision be when the level of…

A: Given If the P-value of a hypothesis test is 0.103, what would your decision be when the level of…

Q: The p-value for a hypothesis test turns out to be .06747. At a 4% level of significance, what is the…

A: We have to find desision..

Q: In a study of 785 randomly selected medical malpractice lawsuits, it was 485 of them were dropped or…

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Q: The Adecco Workplace Insights Survey sampled men and women workers and asked if theyexpected to get…

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Q: If the significance level in a hypothesis test is 5%, the null hypothesis would be rejected if the…

A: The probability of obtaining a statistic or test statistic value at least as extreme as the observed…

Q: The proportion of people in Los Angeles who like exercising is 52%. Identify the type I and type II…

A: The type I error is defined as rejecting the null hypothesis when actually it is true. The type II…

Q: Use the five steps in the hypothesis testing procedure for each answer. A national publishing…

A: Given: A national publishing house claims that 45% of all weekly magazine readers in South Africa…

Q: Solve the following problems following the sequential steps of hypothesis testing. 1. In a recent…

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Q: Just before the 2004 Democratic National convention, Rasmussen Reports polled 1500 likely voters at…

A: The provided information are:

Q: Last year, 40% of business owners gave a holiday gift to their employees. A survey of business…

A: a)From the given information, the sample proportion p hat is 0.30 and sample size (n) is 80.

Q: The administrator of a local hospital has told the governing board that 30% of its emergency room…

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Q: The Adecco Workplace Insights Survey sampled men and women workers and asked if theyexpected to get…

A: In a survey, 74 out of 200 women and 104 out of 200 men replied yes when they were asked that if…

Q: The producer of a TV special expected about 40 percent of the viewing audience to watch a rerun of a…

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Q: The p-value for a hypothesis test turns out to be 0.09064. At a 5% level of significance, what is…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Comparing p-value and α value, which is the correct decision to make for this hypothesis test?  A.…

A: We want find test statistics , P-value,  decision and conc

Q: The p-value for a hypothesis test turns out to be 0.07774. At a 9% level of significance, what is…

A: It is given that the The p-value for a hypothesis test turns out to be 0.07774 i.e. P-value =…

Q: how many of the 200 tests, using a significance level of 5%, will incorrectly find significance

A: Here given  We are conducting many hypothesis tests to test a claim. Assuming the null hypothesis is…

Q: The overall question is: Is this sufficient evidence to say that the two true proportions are…

A: Here compare proportion of male and female said yes

Q: If you make a Type 1 decision error in your hypothesis test, what has happened?

A: Type 1 error happen when  rejecting null hypothesis when it is true

Q: Last year, 60% of business owners gave a holiday gift to their employees. A survey of business…

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Q: The CEO of a large financial institution claims that, on average, their clients invest more than…

A: Step 1: The assumptions for single mean test (one sample t-test) are as follows:   The dependent…

Q: The p-value for a hypothesis test turns out to be 0.05015. At a 2% level of significance, what is…

A: From the provided information, The p value for a hypothesis test = 0.05015 Level of significance (α)…

Q: If you use a 0.10 level of significance in a two-tail hypothesis test, what is your decision rule,…

A: level of significance  = 0.10 Two-tail hypothesis test

Q: major videocassette rental chain is considering opening a new store in an area that currently does…

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Q: An ice cream company is interested to see if the proportion of people in this town who like…

A: Solution: It is given that 50% of people nationally choose chocolate as their favorite ice cream…

Q: Classify the conclusion of the hypothesis test as a Type I error, a Type II error, or a correct…

A: Given information H0:μ=486H1:μ≠486 Suppose the results of the sampling lead to reject the null…

Q: 3. Today, in a random sample of 30 people, Trump received an approval rating of 30% world- wide. On…

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Q: According to the National Highway and Traffic  Safety Administration,  the proportion of fatal…

A: D) The conditions for hypothesis testing of proportion are: np≥10n(1-p)≥10, here, n represents…

Q: Last year, 46% of business owners gave a holiday gift to their employees. A survey of business…

A: Given: p=46%=0.46p^=35%=0.35n=80

Q: A national magazine stated that at most, 18% of millennials have a sports club membership. Formulate…

A: One sample t test is used to test whether the sample mean is came from the population or not. The…

Q: Last year, 44% of business owners gave a holiday gift to their employees. A survey of business…

A: Given Information: Last year, 44% of business owners gave a holiday gift to their employees i.e., π0…

Q: Last year, 54% of business owners gave a holiday gift to their employees. A survey of business…

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Q: How do you determine whether or not the paired t test is appropriate for a two-sample hypothesis?

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Q: researcher is investigating US resident’s natural disaster preparedness. The researcher wants to…

A: For the given data Perform z test for one proportion

Q: The p-value for a hypothesis test turns out to be 0.0985. At a 8% level of significance, what is the…

A: Decision rule:

Q: The p-value for a hypothesis test turns out to be 0.00857. At a 8% level of significance, what is…

A: Decision rule using p-value : Reject null hypothesis (H0) if p-value less than significance level…

Q: A person is directing a hypothesis test, to check: Ho: μ = 5000 verses HA: μ < 5000. Test is to be…

A: Given information- We have given a left-tailed hypothesis test. Null and Alternative Hypothesis Null…

Q: The p-value for a hypothesis test turns out to be 0.09484. At a 2% level of significance, what is…

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Q: Assess the evidence against the null hypothesis if the P-value of the hypothesis test is 0.062.

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Q: Last year, the proportion of tax filers that received a refund was 25%. An accountant believes this…

A: For the given data what is the accountant's claim?

Q: instant replay system for tennis was introduced at a major tournament, men challenged 1427 referee…

A: 1). Consider the data for men to be the first sample and the data for the women to be the second…

Q: A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students…

A: Given that  A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC)…

Q: Use the two-proportions z-test to perform the required hypothesis test. Assume that independent…

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Q: The Center for the Study of Violence wants to determine whether a conflict-resolution program in a…

A: Given: Students Before Participating After Participating 1 10 8 2 3 3 3 4 1 4 8 5 5 8…

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.