Textbook ExpertVerified Tutor
17 Nov 2021
Given information
There are two assumptions that must be true in order to perform an 
test of two variances.
Step-by-step explanation
Step 1.
The -test for the equality of two variances is based on the assumption of normal distributions. The test is valid if this assumption is not satisfied.
If both distributions are normal, then the ratio of the two sample variances is distributed as an -statistic, with numerator and denominator degrees of freedom that are one less than the samples sizes of the corresponding two groups.
A test of two variances hypothesis test determines if two variances are the same. The distribution for the hypothesis test is the -distribution with two different degrees of freedom.
Unlock all Textbook Solutions
Already have an account? Log in
Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
Solutions
Chapter
Section
- Problem 1
- Problem 2
- Problem 3
- Problem 4
- Problem 5
- Problem 6
- Problem 7
- Problem 8
- Problem 9
- Problem 10
- Problem 11
- Problem 12
- Problem 13
- Problem 14
- Problem 15
- Problem 16
- Problem 17
- Problem 18
- Problem 19
- Problem 20
- Problem 21
- Problem 22
- Problem 23
- Problem 24
- Problem 25
- Problem 26
- Problem 27
- Problem 28
- Problem 29
- Problem 30
- Problem 31
- Problem 32
- Problem 33
- Problem 34
- Problem 35
- Problem 36
- Problem 37
- Problem 38
- Problem 39
- Problem 40
- Problem 41a
- Problem 41b
- Problem 42a
- Problem 42b
- Problem 43
- Problem 44
- Problem 45
- Problem 46
- Problem 47
- Problem 48
- Problem 49
- Problem 50
- Problem 51
- Problem 52
- Problem 53
- Problem 54
- Problem 55
- Problem 56
- Problem 57