A hospital administrator believes that the standard deviation of the number of people using outpatient surgery is greaterthan 8. A random sample of 15 days is selected. The data is shown below. At alpha = 0.10, is there enough evidenceto support the administrator's claim?233015184216101212381427A. What type of test is this?O Left tailO Right tailO Two tailB. What is the critical value?C. What is the standard deviation of the sample, reported to 4 decimal places?D. What is the test statistic, using the sample standard deviation from part C? Report answer to 3 decimal places.E. What is the p value? Report answer to 4 decimal places, using the answer inpart D.F. What is the decision?OReject the null hypothesisO Fail to reject the null hypothesis

A. Null and alternative hypotheses: According to alternative hypothesis, this test is a right-tail…

Answered: A hospital administrator believes that…

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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An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b). ... Question content area top right Part 1 μ n x s No candy μ1 36 18.61 1.39 Two candies μ2 36 21.26 2.34 * find the t stat * find the p value * State the conclusion * Construct a confidence interval suitable for testing the claim that the two samples are from populations with the same mean.

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