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) <

Name: Two different simple random samples are drawn from two different popu
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
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

See similar textbooks

Similar questions

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…
In a study designed to assess the side effects of two drugs, 50 animals were given drug A, and 50 animals were given Drug B. Of the 50 receiving Drug A, 11 showed undesirable side effects, while 8 of those receiving Drug B reacted similarly. Find the 98% confidence interval for the true difference in population proportions, pˆ A − pˆ B.
Consider the following research question, which will be answered using the data collected from the scenario: What is the difference in percentage of vehicles that sold as hybrids for Hyundai versus Subaru? What type of inference procedure would best answer this question? Choice 1 of 2:hypothesis test Choice 2 of 2:confidence interval
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.
The Martin County Health Department needs to estimate the proportion of all children in the county aged 19-35 months that are completely up to date with all state-recommended immunizations. The Martin County Health Department found that 88% of a random sample of children in the county aged 19-35 months were completely up to date with all state-recommended immunizations. Find three different confidence intervals - one with sample size 228, one with sample size 402, and one with sample size 658. Assume that 88% of the children each sample are completely up to date with all state recommended immunizations. Observe how the sample size affects the margin of error and subsequently the width of each interval. Report confidence interval solutions using interval notation. Report all solutions in percent form, rounded to two decimal places, if necessary. • When n = 228, the margin of error for a 95% confidence interval is given by When n = • When n = When n = 228, a 95% confidence interval is…
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 .
Two different simple random samples are drawn from two different populations. The first sample consists of 30 people with 16 having a common attribute. The second sample consists of 2000 people with 1409 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. O A. Ho: P1 SP2 H1: P1 #P2 O B. Ho: P1 *P2 H1: P1 = P2 OC. Ho: P1 = P2 H1: P, > P2 O D. Ho: P1 2 P2 H: P1 +P2 O E. Ho: P1 = P2 H:P1 #P2 OF. Ho: P1 =P2 H;: P1
Two different simple random samples are drawn from two different populations. The first sample consists of 20 people with10 having a common attribute. The second sample consists of 1900 people with 1352 of them having the same common attribute. Compare the results from a hypothesis test of p1=p 2 (with a 0.01 significance level) and a 99% confidence interval estimate of p1−p2. What are the null and alternative hypotheses for the hypothesis test? A. Upper H 0H0: p 1p1equals=p 2p2 Upper H 1H1: p 1p1greater than>p 2p2 B. Upper H 0H0: p 1p1not equals≠p 2p2 Upper H 1H1: p 1p1equals=p 2p2 C. Upper H 0H0: p 1p1less than or equals≤p 2p2 Upper H 1H1: p 1p1not equals≠p 2p2 D. Upper H 0H0: p 1p1greater than or equals≥p 2p2 Upper H 1H1: p 1p1not equals≠p 2p2 E. Upper H 0H0: p 1p1equals=p 2p2 Upper H 1H1: p 1p1less than<p 2p2 F. Upper H 0H0: p 1p1equals=p 2p2 Upper H 1H1: p 1p1not equals≠p 2p2 Identify the…
The dataset "nurses" is a random sample of 1,000 cases from “Health Care Provider Credential Data” from Washington State Open Data Portal. In the sample, there are 418 CNA's and 278 of the CNA's have expired credentials. Use the statistics from the nurses dataset to answer the following question: "With 90% confidence, what percent of all CNA's on Washington State's healthcare provider list are expired?"
An October 2011 CBS News Poll on illegal immigrants interviewed 1012 randomly selected American adults. Of those in the sample, 688 said that they “oppose allowing the children of illegal immigrants to attend state college at the lower tuition rate of state residents.” Although the samples in national polls are not SRSs, they are similar enough that our method gives approximately correct confidence intervals. Find the 99% confidence interval for the proportion of adults who “oppose allowing the children of illegal immigrants to attend state college at the lower tuition rate of state residents.” Interpret the confidence interval in a clear sentence. Find the 95% confidence interval. Is the 95% confidence interval longer or shorter than the 99% confidence interval? Find the margin of error for each confidence interval. (Hint: you do have enough information from the calculator output! Margin of error = (width of interval)/2.) Margin of error for 99% confidence…
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 2100 people with 1497 of them having the same common attribute. Compare the results from a hypothesis test of p 1p1equals=p 2p2 (with a 0.01 significance level) and a 99% confidence interval estimate of p 1p1minus−p 2p2.