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
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
100%
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
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 6 steps with 6 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman