Consider the hypothesis testing output below.One-Sample z-test with known variance:Test of Ho : e99 vs. H1 : µ > 99Assumed standard deviation o = 2Significance level a == 0.05- 16Sample mean: 7 = 99.72Sample standard deviation: s =n =2.365Test Statistic zo == 1.44P-value = 0.075%3|(1) What conclusions would you draw?(2) Construct a 95% lower bound on the mean.(3) If the hypothesis had been Ho : µ = 98 versus H1 : µ > 98, would you reject the nullhypothesis at the 0.05 level of significance? Can you answer this without referringto the normal table?(4) What would the P-value be if the alternative hypothesis is H1 : µ # 99?

Given, population mean (μ) = 99 population Standard deviation (σ) = 2 α = 0.05 sample size (n) =…

Answered: One-Sample z-test with known varia Test…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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200 patients involves 200 particpants in comparing an experimental medication to a placebo. Each person enrolled is randomized to recieve either the experimental medication or placebo. Data is collected at the end of the study after 6 weeks. Test if there is significant difference in mean systolic blood pressures between grouos using a=0.05. Meqn of 174 standard deviation of 19.5 Mean systolic blood pressure: experimental (n= 100) 120.2 (15.4) placebo (100) 131.4 (18.9) Hypertensive (%) exp. 14 placebo 22 Side effects (%) exp. 6 placebo 8
Q16 Use t distribution table and normal standard distribution table
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edu/ultra/courses/_313006_1/cl/outline * Question Completion Status: QUESTION 1 EPA fuel economy estimates for automobile models tested recently predicts a mean of 24 mpg and a standard deviation of 6 mpg. Assume that a Normal model applies, N(24, 6). What proportion of automobiles would you expect to have gas mileage of more than 27 mpg? a. 0.6915 b. 0.0013 Oc C. 0.5000 O d. 0.3085 QUESTION 2
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The accuracy of a coin-counter machine is gauged to accept nickels with a mean diameter of millimeters 21.21 mm. A sample of 38 nickles was drawn from a reported defective coin-counter machine located near a school. The sample had a sample mean of 21.214 mm and sample standard deviation 0.01 mm.Test the claim that the mean nickel diameter accepted by this coin-counter machine is greater than 21.21 mm. Test at the 0.1 significance level.(c) Using the Traditional method, the critical value is: (d) Based on your answers above, do you: Reject H0H0 Fail to reject H0H0 (e) Explain your choice
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One-Sample z-test with known varia Test of Ho : u = 99 vs. H1 : µ > 99 Assumed standard deviation o = 2 Significance level a = 0.05 %3D n = 16