pls show solution The side effects of a new drug are being tested against a placebo.A simple random sample of 565 patients yields the results below.At a significance level of a=0.05, is there enough evidence to con-clude that the treatment is independent of the side effect ofnausea?RESULTNauseaNo NauseaTOTALDRUG36254290PLACEBO13262275TOTAL49516565a.) State the null & alternative hypotheses.b.) State the statistical test to be used & compute the p-value.c.) What will be the decision? State conclusion.

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Answered: The side effects of a new drug are…

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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A random sample of eight pairs of twins was randomly assigned to treatment A or treatment B. The data are given in the following table. Is there significant evidence that the two treatments differ using an alpha .05paired t test.
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According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.37. Suppose a random sample of 115 traffic fatalities in a certain region results in 56 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the a = 0.1 level of significance? Find the test statistic, zo. zo = 2.59 (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.)
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In a completely randomized experimental design, three brands of paper towels were tested for their ability to absorb water. Equal-size towels were used, with four sections of towels tested per brand. The absorbency rating data follow. Brand y 92 98 83 99 95 88 87 95 90 94 96 75 At a 0.05 level of significance, does there appear to be a difference in the ability of the brands to absorb water? State the null and alternative hypotheses. Hoi Hx = Hy = Hz %3D H: Not all the population means are equal. Ho: Hx = Hy = Hz Ha: Hx # Hy # Hz %D Ho: At least two of the population means are equal. Ha: : At least two of the population means are different. Hoi Hx# Hy # Hz Ha: Hx = Hy = Hz %D Ho: Not all the population means are equal. Ha: Hx = Hy = Hz Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value : State vour conclusion. N

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