Ho: μ=85; Hα: μ#85. The sample mean is μ 88, the sample size is 20, and the sample standard deviation is 8. Use a=0.10. a. Write the value of x-bar b. Write the value of s c. What is the value of n? d. What is the population mean? e. Identify what test statistic to use. (z-test or t-test?) f. What is the critical value? g. What is the computed value? h. Is the computed value less than or greater than the critical value? (less than or greater than?) i. Computed value falls on? (Rejection Region or Non-Rejection Region?) j. What is your decision? (Reject the Null Hypothesis or Fail to Reject the Null Hypothesis?)

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
Ho: μ=85; Hα: µ#85. The sample mean is μ 88, the sample size is 20, and the sample standard
deviation is 8. Use a=0.10.
a. Write the value of x-bar
b. Write the value of s
c. What is the value of n?
d. What is the population mean?
e. Identify what test statistic to use. (z-test or t-test?)
f. What is the critical value?
g. What is the computed value?
h.
Is the computed value less than or greater than the critical value? (less than or greater
than?)
i.
Computed value falls on? (Rejection Region or Non-Rejection Region?)
j. What is your decision? (Reject the Null Hypothesis or Fail to Reject the Null Hypothesis?)
Transcribed Image Text:Ho: μ=85; Hα: µ#85. The sample mean is μ 88, the sample size is 20, and the sample standard deviation is 8. Use a=0.10. a. Write the value of x-bar b. Write the value of s c. What is the value of n? d. What is the population mean? e. Identify what test statistic to use. (z-test or t-test?) f. What is the critical value? g. What is the computed value? h. Is the computed value less than or greater than the critical value? (less than or greater than?) i. Computed value falls on? (Rejection Region or Non-Rejection Region?) j. What is your decision? (Reject the Null Hypothesis or Fail to Reject the Null Hypothesis?)
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
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