Consider the following hypothesis test: Ho : μ > 20 Ha: μ < 20 A sample of 40 provided a sample mean of 19.4. The population standard deviation is 2. a. Compute the value of the test statistic (to 2 decimals). Enter negative value as negative number. -1.90 b. What is the p-value (to 3 decimals)? c. Using a = 0.05, can it be concluded that the population mean is less than 20? - Select your answer V
Consider the following hypothesis test: Ho : μ > 20 Ha: μ < 20 A sample of 40 provided a sample mean of 19.4. The population standard deviation is 2. a. Compute the value of the test statistic (to 2 decimals). Enter negative value as negative number. -1.90 b. What is the p-value (to 3 decimals)? c. Using a = 0.05, can it be concluded that the population mean is less than 20? - Select your answer V
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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Transcribed Image Text:Consider the following hypothesis test:
Ho : μ > 20
Ha: μ < 20
A sample of 40 provided a sample mean of 19.4. The population
standard deviation is 2.
a. Compute the value of the test statistic (to 2 decimals). Enter
negative value as negative number.
-1.90
b. What is the p-value (to 3 decimals)?
c. Using a
less than 20?
- Select your answer -
=
0.05, can it be concluded that the population mean is
d. Using a = 0.05, what is the critical value for the test statistic (to 3
decimals)? Enter negative value as negative number.
State the rejection rule: Reject Ho if z is - Select your answer -
the critical value.
Using a = 0.05, can it be concluded that the population mean is less
than 20?
- Select your answer -
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