Two different simple random samples are drawn from two different populations. The first sample consists of 20 people with 9 having a common attribute. The second sample consists of 1900 people with 1369 of them having the same common attribute. Compare the results from a hypothesis test of p, = P2 (with a 0.01 significance level) and a 99% confidence interval estimate of p, -P2- What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P1 * P2 O B. Ho: P1 =P2 H: P, *P2 OC. Ho: P1 =P2 H: P, P2 H: P, #P2 Identify the test statistic. (Round to two decimal places as needed.) Identify the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.) What is the conclusion based on the hypothesis test? The test statistic is v the critical region, so V the null hypothesis. There is v evidence to conclude that pP, P2- The 99% confidence interval is < (P1 -P2) <

Two different simple random samples are drawn from two different populations. The first sample consists of 20 people with 9 having a common attribute. The second sample consists of 1900 people with 1369 of them having the same common attribute. Compare the results from a hypothesis test of p, = P2 (with a 0.01 significance level) and a 99% confidence interval estimate of p, -P2- What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P1 * P2 O B. Ho: P1 =P2 H: P, *P2 OC. Ho: P1 =P2 H: P, P2 H: P, #P2 Identify the test statistic. (Round to two decimal places as needed.) Identify the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.) What is the conclusion based on the hypothesis test? The test statistic is v the critical region, so V the null hypothesis. There is v evidence to conclude that pP, P2- The 99% confidence interval is < (P1 -P2) <

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Description: Two different simple random samples are drawn from two different populations. The first sample consists of 20 people with 9 having a common attribute. The second sample consists of 1900 people with 1369 of them having the same commonattribute. Compa

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Two different simple random samples are drawn from two different populations. The first sample consists of 40 people with 21 having a common attribute. The second sample consists of 1800 people with 1314 of them having the same common attribute. Compare the results from a hypothesis test of p, = p2 (with a 0.05 significance level) and a 95% confidence interval estimate of p1 - P2- What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P1 SP2 H1: P1 # P2 O B. Ho: P1 = P2 H1: P1 > P2 OC. Ho: P1 = P2 H1: P1
A professor warts to make sure that two different versions of a test are equivalent He decides to compare the variances of the test scores from ach version.Aample of 15 scores on Version A has a sample variance of 1.626, while a sample of 19 scores from Version B has a sample variance of 4.803 Step 2 of 2: Interpret the confidence interval obtained in Step 1. Answer Tabis Nepod Reyboand thortom O Since the confidence interval.contags F the data do not provide evidence that the population variances are unegual at a 95% confidence lert There is sufficient evidence fortheprofessor to conclude with 95% confidence that the variance in test scores for Version Ais sigrficantly larger than the variance for Version B. O Since the confidence interval'does not contain 1. the data do not provide evidence that the population variances are luneal at a 95% confiderice invel There is sufficient evidence for the professor to condlude with 95 confidence that the variance in test scores fer version Bis…
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Nina would like to estimate the difference in the mean amount of time students spend on math homework at her public school versus her cousin Sharon’s private school. To do so, each girl selects a random sample of 30 students from their large schools and asks the selected students how much time they spent doing math homework the previous night. Nina and Sharon would like to construct a 90% confidence interval for the true difference in the population means. Are the conditions for inference met? Yes, all three conditions for inference are met. No, the random condition is not met for both samples. No, the 10% condition is not met for both samples. No, the Normal/large sample condition is not met for both samples.
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Two different simple random samples are drawn from two different populations. The first sample consists of 20 people with 10 having a common attribute. The second sample consists of 2200 people with 1597 of them having the same common attribute. Compare the results from a hypothesis test of p1= p2 (with a 0.01 significance level) and a 99% confidence interval estimate of p1− p2.
Two different simple random samples are drawn from two different populations. The first sample consists of 40 people with 22 having a common attribute. The second sample consists of 1900 people with 1375 of them having the same common attribute.compare results from a hypothesis test of p1-=p2 with a 0.05 significance level and a 95% confidence interval estimate of p1-p2 .
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A researcher takes a random sample of 100 Americans that have never had a pet and a separate random sample of 100 Americans that are current or previous pet owners. She is interested in determining whether there is a difference in the proportion of individuals who believe in the afterlife among these two groups. She observes that 76 of the "never pet owners" and 84 of the "ever pet owners" believe in the afterlife. Determine the margin of error for a confidence interval for the difference in the two appropriate proportions at a 95% confidence level. a. The assumptions necessary to perform the calculation are not satisfied. b. 0.0837 c. 0.0719 d. 0.1103 e. 1.96
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