t is believed that the percent of convicted felons who have a history of juvenile delinquency is 70%. Isthere evidence to support the claim that the actual percentage is more than 70% if out of 200 convictedfelons, we find that 154 have a history of juvenile delinquency? Set the level of significance at � = 0.05a) Write the null and alternative hypotheses.b) Check the conditions to conduct the hypothesis test for the population proportion.c) Find the z test statistic and the p-value.d) Sketch the z curve indicating the z test statistic and the p-value.e) Should you reject or fail to reject the null hypothesis based on the p-value obtained in the previous part?Why?f) State your conclusion from the test

Q: National data indicates that​ 40% of households own a desktop computer. In a random sample of 570​…

A: We are given the following data: Population mean , μ  = 0.40 Sample size, n = 570 Sample mean, x̅ =…

Q: Suppose that in a random selection of 100 colored​ candies, 26​% of them are blue. The candy company…

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Q: 13. The mean score for all NBA games during a particular season was less than 105 points per game.…

A: The objective of the first part of the question is to identify the type I and type II errors for the…

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A: Given information n = 100 coloured candies p-hat = 0.30 p = 25% Claim :- Percentage of blue candies…

Q: within six years. Is this percent smaller than for students who play intramural sports? 155 of the…

A:

Q: 16% of all college students volunteer their time. Is the percentage of college students who are v…

A: The claim is that the % of college students who are volunteers larger for students receiving…

Q: Only 14% of registered voters voted in the last election. Will voter participation decline for the…

A: 373 randomly selected registered voters surveyed; n=373 37 of them will vote in the upcoming…

Q: Use a = 0.05 to test for any significant differences. %3D State the null and alternative hypotheses.…

A: The null hypothesis is denoted by Ho and alternative hypothesis is denoted by Ha.

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A: It is given that  Population proportion, p = 52% = 0.52 Favourable cases, X = 162 Sample size, n =…

Q: Two hundred fifty managers with degrees in business administration indicated their fields of…

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A:

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: n a poll of 500 adults in July​ 2010, 270 of those polled said that schools should ban sugary snacks…

A: n= 500 Sample size  x= 270 success  p^=xn=270500=0.54  Sample proportion  p= 0.50 Population…

Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

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Q: Suppose that in a random selection of 100 colored​ candies, 25% of them are blue. The candy company…

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Q: Suppose 300 subjects are treated with a drug that is used to treat pain and 72 of them developed…

A:

Q: Past studies have indicated that the percentage of smokers was estimated to be about 35%. Given the…

A:

Q: A humane society claims that less than 73% of households in a certain country own a pet. In a random…

A: Given,n=500x=355p^=xn=355500=0.71α=0.05

Q: c. Compute the test value. d. Make a decision on the null hypothesis. e. Make a decision on the…

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Q: Data from the Motor Vehicle Department indicate that 80% of all licensed drivers are older than age…

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Q: The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's…

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Q: A random sample of 872births included 432 boys. Use a 0.10 significance level to test the claim that…

A:

Q: 13% of all Americans suffer from sleep apnea. A researcher suspects that a different percentage of…

A: Given data number of success , x= 70 sample size, n =390 population proportion,p=…

Q: Think of p as the proportion of all people whose names fall in the first half of the alphabet.…

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

Q: It is recommended that adults get 8 hours of sleep each night. A researcher hypothesized college…

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Q: In hypothesis testing, which of the following/s is/are true? a. rejecting the null might lead to a…

A: Following is the table for Type 1 and Type 2 error :   Null Hypothesis is True Alternate…

Q: Suppose that in a random selection of 100 colored​ candies, 26​% of them are blue. The candy company…

A: The random variable blue candies follows binomial distribution. The sample size is 100. The sample…

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A:

Q: A newsletter publisher believes that 67 % of their readers own a personal computer. Is there…

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Q: In a recent Gallup poll of 511 adults, 64% said that they were in favor of death penalty for a…

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Q: e that in a random selection of 100 colored candies, 22% of them are blue. The candy company claims…

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Q: State whether each hypothesis is null or alternative. 1. The propcrtion of students who will use…

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Q: use a hypothesis test to determine if the proportions are statistically different. A recent survey…

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Q: 55% of students entering four-year colleges receive a degree within six years. Is this percent…

A: Given,sample size (n)=256and X=161sample proportion(p^)=Xn=161256=0.6289α=0.10

Q: Suppose you conduct a hypothesis test based on a sample where the sample size is n = 50, and arrive…

A: The p-value is 0.08 for the sample size of 50.

Q: The recidivism rate for convicted sex offenders is 8%. A warden suspects that this percent is…

A:

Q: A business journal investigation of the performance and timing of corporate acquisitions discovered…

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Q: State the null and altemative hypotheses for a one-way ANOVA test. Which hypotheses below are for a…

A: In statistics, one-way ANOVA is a test used to compare the means of three or more independent…

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.