Test the hypothesis that the average length of movies made by company 2 exceeds the average length of movies made by company 1 by 10 minutes against the one-sided alternative that the difference is less than 10 minutes. Use a 0.1 level of significance and assume the distributions of times to be approximately normal with unequal variances. The null hypothesis (Ho) is а. O[H2 - H1 = 10] O[H2 - H2 > 10] b. Rounded off to the nearest integer, the degrees of freedom is: с. t = d. Decision: O[reject Ho]
Test the hypothesis that the average length of movies made by company 2 exceeds the average length of movies made by company 1 by 10 minutes against the one-sided alternative that the difference is less than 10 minutes. Use a 0.1 level of significance and assume the distributions of times to be approximately normal with unequal variances. The null hypothesis (Ho) is а. O[H2 - H1 = 10] O[H2 - H2 > 10] b. Rounded off to the nearest integer, the degrees of freedom is: с. t = d. Decision: O[reject Ho]
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter4: Factors, Fractions, And Exponents
Section4.4: Least Common Multiple
Problem 64E
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![The table below gives the length (in minutes) of the movies made by two different movie production
companies:
Company 1
Time (mins.)
Company 2
Time (mins.)
102
81
86
165
98
97
109
134
92
92
87
114
Test the hypothesis that the average length of movies made by company 2 exceeds the average length of
movies made by company 1 by 10 minutes against the one-sided alternative that the difference is less than
10 minutes. Use a 0.1 level of significance and assume the distributions of times to be approximately normal
with unequal variances.
The null hypothesis (Ho) is
а.
O[H2 - H1 = 10]
2 - H2 > 10]
b.
Rounded off to the nearest integer, the degrees of freedom is:
С.
t =
d.
Decision:
O[reject Ho]
O[do not reject Ho]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5fac0933-fd1e-4a9f-bd9f-76b7ccc3437c%2Fed7d6ab0-f1ff-4232-8247-c22c80279386%2Fx9sjnv9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The table below gives the length (in minutes) of the movies made by two different movie production
companies:
Company 1
Time (mins.)
Company 2
Time (mins.)
102
81
86
165
98
97
109
134
92
92
87
114
Test the hypothesis that the average length of movies made by company 2 exceeds the average length of
movies made by company 1 by 10 minutes against the one-sided alternative that the difference is less than
10 minutes. Use a 0.1 level of significance and assume the distributions of times to be approximately normal
with unequal variances.
The null hypothesis (Ho) is
а.
O[H2 - H1 = 10]
2 - H2 > 10]
b.
Rounded off to the nearest integer, the degrees of freedom is:
С.
t =
d.
Decision:
O[reject Ho]
O[do not reject Ho]
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