A. Directions: Study the table below. Find the critical value, draw the rejection region, compute the valueof the test statistic, and state your decision whether to accept or reject the null hypothesis in each ofthe following situations.HypothesesGivenRejection RegionTest ValueDecisionX = 11.5Ho: μ = 14H„: μ = 14S = 5.5n = 35α = 0.01Ho: μ = 80Πα: μ < 80X = 750²= 25n = 20α = 0.01X = 10Ho: μ = 9.8Ha: μ> 9.8s = 4.3n = 12α = 0.05A

Solution-: We want to compute the value of test statistic, and state the decision whether to accept…

Answered: A. Directions: Study the table below.…

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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Use the given information to find the p-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). With H 1: p≠0.377, the test statistic is z=3.06.
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…
1. The incidence of cancer among phosphate mine workers and their exposure to radiation was investigated. Cancer incidence was recorded among 60 phosphate mine workers who had 0-29 working level months (WLM) of exposure, 60 phosphate mine workers who had 30-89 WLM of exposure, and 60 phosphate mine workers who had 90-120 WLM of exposure. The number of cancer incidences for each group are presented in Table 1. Table 1: Two-way Table of Counts Cancer Incidence Exposure Level Yes No Total 0-29 WLM 20 40 60 30-89 WLM 33 27 60 90-120 WLM 43 17 60 Total 96 84 180 Perform a x? test, at the 5% level of significance, whether cancer incidence rates differ between the three levels of radiation among phosphate mine workers.
A hypothesis test is performed on Ho: Pa = 7 H₁: a <7 where the alternative hypothesis is the claim. Suppose that our test statistic is t = -1.13 and the critical value obtained from a given significance level is t = -1.52. Should we reject or fail to reject the null hypothesis? Select one: O a. reject O b. fail to reject
Assume a significance level of α=0.1 and use the given information to complete parts (a) and (b) below. Original claim: The mean pulse rate (in beats per minute) of a certain group of adult males is 70 bpm. The hypothesis test results in a P-value of 0.0025. a. State a conclusion about the null hypothesis. (Reject H0 or fail to reject H0.) Choose the correct answer below. A. Fail to reject H0 because the P-value is less than or equal to α. B. Reject H0 because the P-value is less than or equal to α. C. Reject H0 because the P-value is greater than α. D. Fail to reject H0 because the P-value is greater than α. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? A. The mean pulse rate (in beats per minute) of the group of adult males is 70 bpm. B. There is sufficient evidence to warrant rejection of the claim that the…
You may need to use the appropriate appendix table or technology to answer this question. Consider the following hypothesis test. H0: μ1 − μ2 ≤ 0 Ha: μ1 − μ2 > 0 The following results are for two independent samples taken from the two populations. Sample 1 Sample 2 n1 = 40 n2 = 50 x1 = 25.7 x2 = 22.8 σ1 = 5.8 σ2 = 6 (a) What is the value of the test statistic? (Round your answer to two decimal places.) (b) What is the p-value? (Round your answer to four decimal places.) (c) With ? = 0.05, what is your hypothesis testing conclusion? Reject H0. There is sufficient evidence to conclude that μ1 − μ2 > 0.Reject H0. There is insufficient evidence to conclude that μ1 − μ2 > 0. Do not reject H0. There is insufficient evidence to conclude that μ1 − μ2 > 0.Do not Reject H0. There is sufficient evidence to conclude that μ1 − μ2 > 0.
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.
question 2 Give the rejection region. Group of answer choices z greater than 1.64 t greater than 1.64 z greater than 1.58 t greater than 1.58 question 3 Give the test statistic. Group of answer choices z = 1.64 t = 1.58 t = 1.64 z = 1.58 question 4 Give the conclusion. Group of answer choices Reject the null since the test statistic is not in the rejection region. Fail to reject the null since the test statistic is not in the rejection region.
Use the calculator displays to the right to make a decision to reject or fail to reject the null hypothesis at a significance level of α=0.10. Z-Test Z-Test Inpt: Data Stats μ≠80 μ0:80 z=−1.18321596 σ:3.75 p=0.23672357 x:79.25 x=79.25 n:35 n=35 μ: ≠μ0 <μ0 >μ0 Calculate Draw Choose the correct answer below. A. Since the P-value is greaterthan α, fail to reject the null hypothesis. B. Since the P-value is lessthan α, reject the null hypothesis. C. Since the P-value is lessthan α, fail to reject the null hypothesis. D. Since the P-value is greaterthan α, reject he null hypothesis.
Use the t-distribution and the given sample results to complete the test of the given hypotheses. Assume the results come from random samples, and if the sample sizes are small, assume the underlying distributions are relatively normal. Test Ho: M₁ = μ₂ vs Ha: ₁ ₂ using the sample results n₂ = = 80. Part 1 test statistic = i = (a) Give the test statistic and the p-value. Round your answer for the test statistic to two decimal places and your answer for the p-value to three decimal places. p-value = i 15.3, s₁ = 11.6 with n₁ = 100 and ₂ = 18.4, 82 = 14.3 with
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.

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