Suppose a sample of n = 15 students were given a diagnostic test before studying a particular module and then again after completing the module. We want to find out if, in general, our teaching leads to improvements in students' knowledge/skills (i.e. test scores). If the following results were obtained: Student Pre-module Post-module Difference score 1 18 22 +4 2 21 25 +4 3 16 17 +1 4 22 24 +2 5 19 16 -3 6 24 29 +5 7 17 20 +3 8 21 23 +2 9 23 19 -4 10 18 20 +2 11 14 15 +1 12 16 15 -1 13 16 18 +2 14 19 26 +7 15 17 18 -1 State the null hypothesis. Test the null hypothesis at a =0.05 level of significance.
Suppose a sample of n = 15 students were given a diagnostic test before studying a particular module and then again after completing the module. We want to find out if, in general, our teaching leads to improvements in students' knowledge/skills (i.e. test scores). If the following results were obtained: Student Pre-module Post-module Difference score 1 18 22 +4 2 21 25 +4 3 16 17 +1 4 22 24 +2 5 19 16 -3 6 24 29 +5 7 17 20 +3 8 21 23 +2 9 23 19 -4 10 18 20 +2 11 14 15 +1 12 16 15 -1 13 16 18 +2 14 19 26 +7 15 17 18 -1 State the null hypothesis. Test the null hypothesis at a =0.05 level of significance.
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
Suppose a sample of n = 15 students were given a diagnostic test before studying a particular
module and then again after completing the module. We want to find out if, in general, our teaching leads to improvements in students' knowledge/skills (i.e. test scores). If the following results were obtained:
|
|
|
Student Pre-module Post-module Difference score |
|
|
1 18 22 +4 |
|||
|
2 |
21 |
25 |
+4 |
|
3 |
16 |
17 |
+1 |
|
4 |
22 |
24 |
+2 |
|
5 |
19 |
16 |
-3 |
|
6 |
24 |
29 |
+5 |
|
7 |
17 |
20 |
+3 |
|
8 |
21 |
23 |
+2 |
|
9 |
23 |
19 |
-4 |
|
10 |
18 |
20 |
+2 |
|
11 |
14 |
15 |
+1 |
|
12 |
16 |
15 |
-1 |
|
13 |
16 |
18 |
+2 |
|
14 |
19 |
26 |
+7 |
|
15 |
17 |
18 |
-1 |
|
|
|||
|
|
State the null hypothesis. |
Test the null hypothesis at a =0.05 level of significance. |
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