treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 8% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.01 significance level to complete parts (a) through (e) below. 1-PropZTest prop <0.08 --0.25408390 p-0.3997153695 p-0.0757575758 n-264 Is the test two-tailed, left-tailed, or right-tailed? 2 Two-tailed test * Left-tailed test

treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 8% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.01 significance level to complete parts (a) through (e) below. 1-PropZTest prop <0.08 --0.25408390 p-0.3997153695 p-0.0757575758 n-264 Is the test two-tailed, left-tailed, or right-tailed? 2 Two-tailed test * Left-tailed test

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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In a test of the effectiveness of garlic for lowering cholesterol, 36 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.8 and a standard deviation of 24.1. Use a 0.05 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. ..... What are the null and alternative hypotheses? 'A. H : μ-0 mgldL B. H0 μ> 0 mg/dL H;: u> 0 mg/dL H: µ< 0 mg/dL O C. Ho: µ= 0 mg/dL O D. Ho: H=0 mg/dL H1: µ#0 mg/dL H,: µ<0 mg/dL Determine the test statistic. (Round to two decimal places as needed.)