
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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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).
The test statistic in a left-tailed test is z = -2.05
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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 nullhypothesis (reject the null hypothesis or fail to reject the null hypothesis). The test statistic in a right-tailed test is z = 0.52.arrow_forwardA teacher would like to determine if quiz scores improve after completion of a worksheet. The students take a pre-quiz before the worksheet and then another quiz after the worksheet. Assume that the quiz scores are normally distributed. The grades for each quiz are given below. Use a significance level of α=0.05. List 1 has the post-quiz scores. List 2 has the pre-quiz scores. The hypothesis test is to see if the Post-Quiz Scores are > the Pre-Quiz Scores So, H0: μd=0 H1: μd > 0 post-quiz pre-quiz11 137 1317 1418 1713 136 616 1221 1814 718 14 What is the test statistic?test statistic = (Report answer accurate to 3 decimal places.) What is the p-value for this sample? p-value = (Report answer accurate to 3 decimal places.) The correct decision is to . The correct summary would be: that the worksheet did improve the average quiz scoresarrow_forwardUse the given information to find the P-value. Also, use a 0.05 significance level and state theconclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis).With H1: p (does not equal) 0.377 the test statistic is z = 3.06.arrow_forward
- Use technology to find the P-value for the hypothesis test described below. The claim is that for a smartphone carrier's data speeds at airports, the mean is u = 15.00 Mbps. The sample size is n= 20 and the test statistic is t = -2.405. P-value = (Round to three decimal places as needed.)arrow_forwardUse the six steps of hypothesis testing to answer the following question. Remember to determine if the problem is a Z test or T test as that will influence your critical value. You work at a cereal plant and believe the machines are under filling the boxes. All boxes should contain 20 ounces of cereal. You draw a sample of 70 boxes and find an average of 18.6 ounces with a standard deviation of 2.8. Are the boxes being under filled?arrow_forwardUse technology to find the P-value for the hypothesis test described below. The claim is that for a smartphone carrier's data speeds at airports, the mean is u= 18.00 Mbps. The sample size is n= 26 and the test statistic is t= 1.907. P-value- (Round to three decimal places as needed.)arrow_forward
- Use technology to find the P-value for the hypothesis test described below. The claim is that for a smartphone carrier's data speeds at airports, the mean is μ=14.00Mbps. The sample size is n=25and the test statistic is t=−1.313.arrow_forwardPlz help asap 32arrow_forwardUse technology to find the P-value for the hypothesis test described below.The claim is that for a smartphone carriers data speeds at airports, the mean is 12.00 Mbps. The sample size is n=21 and the test statistic is t=-1.149. Find the P-value. (Round to three decimal places as needed.)arrow_forward
- Find the P-value for the indicated hypothesis test with the given standardized test statistic, z. Decide whether to reject H0 for the given level of significance α. Two-tailed test with test statistic z=−1.86 and α=arrow_forwardUse the attached standard normal table to find the p-value for the given hypothesis test. Ho: p = .3, H1: p7.3 (two tailed test), the test statistic is Z = -2.16. What is the p-value? Do not round your answer.arrow_forwardA sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 10% significance level. x=35, n=21, a=5, Ho: μ = 34, H₂: μ#34 The test statistic is z = (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) the null hypothesis. The data sufficient evidence to conclude that the mean isarrow_forward
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