Question
Use Excel to test.For each paired difference, compute After - Before.In Data Analysis, t-Test: Paired Two Sample for means, select the After data for Variable
Use Excel to test.For each paired difference, compute After - Before.In Data Analysis, t-Test:
Paired Two Sample for means, select the After data for Variable 1 Range. Note that the critical
value output by Data Analysis for this test is always positive. In this problem,, the sign of the
critical value is negative corresponding to 1-tailed test with lower reject region and negative
lower critical value.
PersonBeforeAfter1176 164
2192 191
3 185 176
4 177 176
5 196 185
6 178 169
7 196 196
8 181 172
9 158 158
10 201 193
11 191 185
12 193 189
13 176 175
14 212 210
15 177 173
16 183 180
17 210 204
18 198 192
19 157 152
20 213 200
21 161 161
22 177 166
23 210 203
24 192 186
25 178 170
What is your conclusion?
Select from the following answer
a) Do not reject the NULL Hypothesis because the actual value is greater than critical value
b) Do not reject the NULL Hypothesis because the actual value is less than critical value
c) Reject the NULL Hypothesis because the actual value is greater than critical value
d) Reject the NULL Hypothesis because the actual value is less than critical value
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started