The cost of a university education has increased at a much faster rate than costs in general over the past twenty years. In order to compensate for this, many students work part- or full-time in addition to attending classes. At one university, it is believed that the average number of hours students work per week exceeds 20. A random sample of 20 students was selected and the following values were observed: 26 15 10 40 10 20 30 36 40 0 5 10 20 32 16 12 40 36 10 0 The correct null and alternative hypotheses are H0 : µ = 20 and HA : µ > 20. H0 : µ = 20 and HA : µ ≠ 20. H0 : µ = 20 and HA : µ < 20. H0 : µ > 20 and HA : µ = 20.
The cost of a university education has increased at a much faster rate than costs in general over the past twenty years. In order to compensate for this, many students work part- or full-time in addition to attending classes. At one university, it is believed that the average number of hours students work per week exceeds 20. A random sample of 20 students was selected and the following values were observed: 26 15 10 40 10 20 30 36 40 0 5 10 20 32 16 12 40 36 10 0 The correct null and alternative hypotheses are H0 : µ = 20 and HA : µ > 20. H0 : µ = 20 and HA : µ ≠ 20. H0 : µ = 20 and HA : µ < 20. H0 : µ > 20 and HA : µ = 20.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
Related questions
Question
The cost of a university education has increased at a much faster rate than costs in general over the past twenty years. In order to compensate for this, many students work part- or full-time in addition to attending classes. At one university, it is believed that the average number of hours students work per week exceeds 20. A random sample of 20 students was selected and the following values were observed:
|
26 |
15 |
10 |
40 |
|
10 |
20 |
30 |
36 |
|
40 |
0 |
5 |
10 |
|
20 |
32 |
16 |
12 |
|
40 |
36 |
10 |
0 |
The correct null and alternative hypotheses are
|
H0 : µ = 20 and HA : µ > 20. |
||
|
H0 : µ = 20 and HA : µ ≠ 20. |
||
|
H0 : µ = 20 and HA : µ < 20. |
||
|
H0 : µ > 20 and HA : µ = 20. |
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill