Concept explainers
a.
To find: The critical value.
a.
Answer to Problem 2.1CYU
The critical value is 2.518
Explanation of Solution
Given:
Calculation:
The level of significance is:
The degree of freedom is 22-1 = 22
The critical value using standard normal table is calculated as:
The critical value is 2.518
b.
To find: The critical value.
b.
Answer to Problem 2.1CYU
The critical value is 1.833.
Explanation of Solution
Given:
Calculation:
The level of significance is:
The degree of freedom is 10-1 = 9
The critical value using standard normal table is calculated as:
The critical value is 1.833.
c.
To find: The critical value.
c.
Answer to Problem 2.1CYU
The critical value is 2.447.
Explanation of Solution
Given:
Calculation:
The level of significance is:
The degree of freedom is 7-1 = 6
The critical value using standard normal table is calculated as:
The critical value is 2.447
Chapter 8 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Fundamentals of Statistics (5th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Elementary Statistics: Picturing the World (6th Edition)
Basic Business Statistics, Student Value Edition
Basic Business Statistics, Student Value Edition (13th Edition)
Elementary Statistics: Picturing the World (7th Edition)
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