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5. A particular drug company claims that its headache remedy stops the average headache in 14 minutes. Being skeptical, you think they are exaggerating the speed at which their medication works. You randomly select 25 headache patients, and record the length of time it takes for their headache to disappear after taking the company's medication. The results of your study are = 19 minutes and s = 7. Assume that the length of time is normally distributed. Carry out a hypothesis test to try to prove your suspicion, using a = 0.1 6. Find the p-values for each test below, assuming that o is known, and therefore the test statistic follows a standard normal distribution: a) Ho u=50 Ha : µ > 50 test statistic = –0.13 %3D p(Z>-0.13) P malue = 0.5517 b) Ho : µ = 0 Ha : µ +0 test statistic = 2.86 c) Ho u = 12 Ha : µ < 12 test statistic = -1.85 %3D p(ZZ-1.85) Pvalue 0.0322 %3D

5. A particular drug company claims that its headache remedy stops the average headache in 14 minutes. Being skeptical, you think they are exaggerating the speed at which their medication works. You randomly select 25 headache patients, and record the length of time it takes for their headache to disappear after taking the company's medication. The results of your study are = 19 minutes and s = 7. Assume that the length of time is normally distributed. Carry out a hypothesis test to try to prove your suspicion, using a = 0.1 6. Find the p-values for each test below, assuming that o is known, and therefore the test statistic follows a standard normal distribution: a) Ho u=50 Ha : µ > 50 test statistic = –0.13 %3D p(Z>-0.13) P malue = 0.5517 b) Ho : µ = 0 Ha : µ +0 test statistic = 2.86 c) Ho u = 12 Ha : µ < 12 test statistic = -1.85 %3D p(ZZ-1.85) Pvalue 0.0322 %3D

MATLAB: An Introduction with Applications
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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5. A particular drug company claims that its headache remedy stops the average headache in 14 minutes. Being skeptical, you think they are exaggerating the speed at which their medication works. You randomly select 25 headache patients, and record the length of time it takes for their headache to disappear after taking the company's medication. The results of your study are = 19 minutes and s = 7. Assume that the length of time is normally distributed. Carry out a hypothesis test to try to prove your suspicion, using a = 0.1 6. Find the p-values for each test below, assuming that o is known, and therefore the test statistic follows a standard normal distribution: a) Ho u=50 Ha : µ > 50 test statistic = –0.13 %3D p(Z>-0.13) P malue = 0.5517 b) Ho : µ = 0 Ha : µ +0 test statistic = 2.86 c) Ho u = 12 Ha : µ < 12 test statistic = -1.85 %3D p(ZZ-1.85) Pvalue 0.0322 %3D
Transcribed Image Text:5. A particular drug company claims that its headache remedy stops the average headache in 14 minutes. Being skeptical, you think they are exaggerating the speed at which their medication works. You randomly select 25 headache patients, and record the length of time it takes for their headache to disappear after taking the company's medication. The results of your study are = 19 minutes and s = 7. Assume that the length of time is normally distributed. Carry out a hypothesis test to try to prove your suspicion, using a = 0.1 6. Find the p-values for each test below, assuming that o is known, and therefore the test statistic follows a standard normal distribution: a) Ho u=50 Ha : µ > 50 test statistic = –0.13 %3D p(Z>-0.13) P malue = 0.5517 b) Ho : µ = 0 Ha : µ +0 test statistic = 2.86 c) Ho u = 12 Ha : µ < 12 test statistic = -1.85 %3D p(ZZ-1.85) Pvalue 0.0322 %3D
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