Information regarding the starting salaries (in $1,000) of samples of students in four different majors is given below. Majors Marketing Business Admin Accounting Personal finacne Sample size 12 10 9 14 Sample average 26 31 22 25 Sample variance 10 7 15 9 Research Question: Is there a significant difference in the means of four populations? Assume α = 5%. B. State the null and alternative hypotheses. Null: xbarmanagement = xbarmarketing = xbarfinance = xbaraccounting; Alternative: All samples means are different Null: μmanagement = μmarketing = μfinance = μaccounting; Alternative: At least two population means are different Null: xbarmanagement = xbarmarketing = xbarfinance = xbaraccounting; Alternative: At least two sample means are different Null: μmanagement = μmarketing = μfinance = μaccounting; Alternative: All population means are different C. Fill in the blank in the following table: x¯¯ 26 nT SSTR 408 SSE 410 nT = ___________. 45 12 41 10
Information regarding the starting salaries (in $1,000) of samples of students in four different majors is given below. Majors Marketing Business Admin Accounting Personal finacne Sample size 12 10 9 14 Sample average 26 31 22 25 Sample variance 10 7 15 9 Research Question: Is there a significant difference in the means of four populations? Assume α = 5%. B. State the null and alternative hypotheses. Null: xbarmanagement = xbarmarketing = xbarfinance = xbaraccounting; Alternative: All samples means are different Null: μmanagement = μmarketing = μfinance = μaccounting; Alternative: At least two population means are different Null: xbarmanagement = xbarmarketing = xbarfinance = xbaraccounting; Alternative: At least two sample means are different Null: μmanagement = μmarketing = μfinance = μaccounting; Alternative: All population means are different C. Fill in the blank in the following table: x¯¯ 26 nT SSTR 408 SSE 410 nT = ___________. 45 12 41 10
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Information regarding the starting salaries (in $1,000) of samples of students in four different majors is given below.
|
|
|
Majors |
|||
|
|
|
Marketing |
Business Admin |
Accounting |
Personal finacne |
|
|
|
12 |
10 |
9 |
14 |
|
|
Sample average |
26 |
31 |
22 |
25 |
|
|
Sample variance |
10 |
7 |
15 |
9 |
Research Question: Is there a significant difference in the means of four populations? Assume α = 5%.
B. State the null and alternative hypotheses.
Null: xbarmanagement = xbarmarketing = xbarfinance = xbaraccounting; Alternative: All samples means are different
Null: μmanagement = μmarketing = μfinance = μaccounting; Alternative: At least two population means are different
Null: xbarmanagement = xbarmarketing = xbarfinance = xbaraccounting; Alternative: At least two sample means are different
Null: μmanagement = μmarketing = μfinance = μaccounting; Alternative: All population means are different
C. Fill in the blank in the following table:
| x¯¯ |
26 |
nT |
|
|
SSTR |
408 |
SSE |
410 |
nT = ___________.
45
12
41
10
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