c. Conclude whether to reject the null hypothesis or not based on the test statistic.O RejectOFail to Reject Conduct the stated hypothesis test for 1-2. Assume that the samples are independent and randomly selected from normal populations with equal populationvariances (₁² = 02²).T-Distribution Tablea. Calculate the test statistic.t0.000Round to three decimal places if necessaryHo:Round to three decimal places if necessary12-0n₁ = 28n₂ = 24b. Determine the critical value(s) for the hypothesis test.H₁: ₁-₂ <0X₁ = 8.79X2 = 9.46a = 0.005$11.3182 = 1.22

According to the given information in this question We need to find the test statistic and critical…

Answered: Conduct the stated hypothesis test for…

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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Molly works for a meat producer, and she needs to determine whether containers of ground beef have the correct fat content. She obtains a random sample of 120 containers of ground beef and finds that 84 percent have the correct fat content. Molly then conducts a hypothesis test of H0:p=0.80H0:p=0.80 versus Ha:p≠0.80Ha:p≠0.80 and calculates a test statistic of 1.10 with a pp-value of 0.273. Which of the following best represents the meaning of the pp-value? If the population proportion is 0.84, the probability of observing a sample proportion of 0.80 is 0.273. A If the population proportion is 0.84, the probability of observing a sample proportion of at least 0.04 less than 0.84 is 0.273. B If the population proportion is 0.80, the probability of observing a sample proportion within 0.04 of 0.80 is 0.273. C If the population proportion is 0.80, the probability of observing a sample proportion at least 0.04 greater than 0.80 is 0.273. D If the…
Use technology and a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ>79; α=0.10 Sample statistics: x=80.2, s=3.7, n=28 What are the null and alternative hypotheses? Choose the correct answer below. A. H0:μ≠79 HA:μ=79 B. H0:μ=79 HA:μ≠79 C. H0:μ≤79 HA:μ>79 D. H0:μ≥79 HA:μ<79 What is the value of the standardized test statistic?= What is the P-value of the test statistic?= Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below. A. Reject H0. There is enough evidence to support the claim. Your answer is correct. B. Reject H0. There is not enough evidence to support the claim. C. Fail to reject H0. There is enough evidence to support the claim. D. Fail to reject H0. There is not enough…
A sample mean, sample standard deviation, and sample size are given. Perform the required hypothesis test about the mean, μ, of the normal population from which the sample was drawn. H0: μ ≤ 2.85, Ha: μ > 2.85, x = 3.26, s = 0.55, n = 9, α = 0.05
Find the value of the standard score, z, and determine whether to reject the null hypothesis at a 0.01 significance level. Is the alternative hypothesis supported? Ho: μ = 19.1 meters, H₂: μ# 19.1 meters, n=144, x= 18.4 meters, o = 1.4 meters The value of the standard score is (Round to two decimal places as needed.) The critical value(s) is/are (Use a comma to separate answers as needed. Round to two decimal places as needed.) Determine whether the alternative hypothesis is supported at a 0.01 significance level. O A. The standard score is at least as extreme as the critical value(s). Reject Ho. The alternative hypothesis is supported. OB. The standard score is at least as extreme as the critical value(s). Do not reject Ho. The alternative hypothesis is not supported. C. The standard score is less extreme than the critical value(s). Reject Ho. The alternative hypothesis is supported. D. The standard score is less extreme than the critical value(s). Do not reject Ho. The alternative…
Provide an appropriate response. Suppose you want to test the claim thatu, < µz. Two samples are randomly selected from each population. The sample statistics are given below. At a level of significance of a = 0.05, when should you reject Ho? One Left Tail Test-Z table n1 = 35 n2 = 42 X1 = 29.23 X2 = 31.78 S1 = 2.9 s2 = 2.8 Reject Ho if the standardized test statistic is less than -1.645. Reject Ho if the standardized test statistic is less than -2.33. O Reject Ho if the standardized test statistic is less than -2.575. Reject Ho if the standardized test statistic is less than -1.96.
Use a t-test to test the claim about the population mean μ at the given level of significance a using the given sample statistics. Assume the population is normally distributed. Claim: μ = 51,100; x = 0.01 Sample statistics: x=51,527, s=2800, n=20 Click the icon to view the t-distribution table. What are the null and alternative hypotheses? Choose the correct answer below. OA. Ho: 251,100 Hgia 51,100 What is the value of the standardized test statistic? The standardized test statistic is. (Round to two decimal places as needed.) t-Distribution Table d.f. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 45 50 60 70 80 90 100 500 1000 30 d.f. Level of confidence, c One tail, a Two tails, a B. Ho: 51,100 H₂:51,100 Level of O D. Ho: μ*51,100 H₂:μ=51,100 0.99 0.80 0.90 0.95 0.98 0.10 0.05 0.025 0.01 0.005 0.20 0.10 0.05 0.02 0.01 d.f. 3.078 6.314 12.706 31.821 63.657 1 1.886 2.920 4.303 6.965 9.925 2 1.638 2.353 3.182 4.541 5.841…
Use a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ=52,500; α=0.10 Sample statistics: x=52,691, s=1900, n=17 LOADING... Click the icon to view the t-distribution table. What are the null and alternative hypotheses? Choose the correct answer below. A. H0: μ≠52,500 Ha: μ=52,500 B. H0: μ≤52,500 Ha: μ>52,500 C. H0: μ=52,500 Ha: μ≠52,500 D. H0: μ≥52,500 Ha: μ<52,500 What is the value of the standardized test statistic? The standardized test statistic is nothing. (Round to two decimal places as needed.) What is(are) the critical value(s)? The critical value(s) is(are) nothing. (Round to three decimal places as needed. Use a comma to separate answers as needed.) Decide whether to reject or fail to reject the null hypothesis. A. Fail to reject H0.…
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A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the critical-value approach. Sample mean = 43.9 s = 5.3 n = 15 α = 0.05 H0: µ = 32.6 H1: µ ≠ 32.6 The decision is to the null hypothesis. (Enter R if you reject and enter F if you fail to reject)
You wish to conduct a hypothesis test to determine if a bivariate data set has a significant correlation among the two variables. That is, you wish to test the claim that there is a correlation (Ha : p ‡ 0). You have a data set with 7 subjects, in which two variables were collected for each subject. You will conduct the test at a significance level of a = 0.05. Find the critical value for this test. rc.v. = ± Report answers accurate to three decimal places.
Given the two independent samples below, conduct a hypothesis test for the desired scenario. Assume all populations are approximately normally distributed. Sample 1 Sample 2 n1 = 998 n2 = 893 x1 = 394 T2 = 356 S1 = 154 S2 = 169 Test the claim: Given the null and alternative hypotheses below, conduct a hypothesis test for a = 0.05. Ho: Hi = µ2 Ha: µ1 > µ2 a. Given the alternative hypothesis, the test is Select an answer v b. Determine the test statistic. Round to four decimal places. c. Find the p-value. Round to 4 decimals. p-value = d. Make a decision. O Fail to reject the null hypothesis. O Reject the null hypothesis.
Using the first image's question, answer all the questions asked in second image.

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