A professor claims that exam scores for non-accounting majors are more variable than for accounting majors. Random samples of 29 non-accounting majors and 29 accounting majors are taken from a final
A professor claims that exam scores for non-accounting majors are more variable than for accounting majors. Random samples of 29 non-accounting majors and 29 accounting majors are taken from a final
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
Related questions
Question
![A professor claims that exam scores for non-accounting majors are more variable than for accounting
majors. Random samples of 29 non-accounting majors and 29 accounting majors are taken from a final
exam. Test at the 1% level the null hypothesis that the two population variances are equal against the
alternative that the true variance is higher for the non-accounting majors. Assume the populations are
normally distributed.
Non-Accounting
Accounting
H₁:0² = 0²
H₁:0² > 0²
C. H₂:0² = 0²
H₁:0² #0²
nx = 29
ny
= 29
S
The critical value is
X
2
represented by Ho and the alternative hypothesis is represented by H₁. Choose the correct answer below.
OB. Ho: 0²20²
H₁:0² <0²
= 1611.016
= 446.238
2
OD. H₂:0² = 0²
o
H₁:0² <0²
The test statistic is F = 3.610. (Round to three decimal places as needed.)
(Round to two decimal places as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F46e0f334-48ac-4e63-9f65-f4274d380512%2Fab4d85d6-012c-4486-8435-067e281ba774%2Fu2855x9_processed.png&w=3840&q=75)
Transcribed Image Text:A professor claims that exam scores for non-accounting majors are more variable than for accounting
majors. Random samples of 29 non-accounting majors and 29 accounting majors are taken from a final
exam. Test at the 1% level the null hypothesis that the two population variances are equal against the
alternative that the true variance is higher for the non-accounting majors. Assume the populations are
normally distributed.
Non-Accounting
Accounting
H₁:0² = 0²
H₁:0² > 0²
C. H₂:0² = 0²
H₁:0² #0²
nx = 29
ny
= 29
S
The critical value is
X
2
represented by Ho and the alternative hypothesis is represented by H₁. Choose the correct answer below.
OB. Ho: 0²20²
H₁:0² <0²
= 1611.016
= 446.238
2
OD. H₂:0² = 0²
o
H₁:0² <0²
The test statistic is F = 3.610. (Round to three decimal places as needed.)
(Round to two decimal places as needed.)
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