We want to test if mean reaction time to a visual stimulus for people with diabetes is less than 400 milliseconds (the known mean for people free of this disease). To address this question, we measure reaction time for a sample of 36 people with diabetes.
Write the null and alternative hypotheses
Write the rejection region
A one-sample t-test was done using SAS; edited results are below. Using this information, give the decision of the test, and explain how you reached this decision.
N |
Mean |
Std Dev |
Std Err |
Minimum |
Maximum |
36 |
395.2 |
41.8046 |
6.9674 |
316.0 |
481.0 |
DF |
t Value |
Pr < t |
35 |
-0.69 |
0.2462 |
Interpret the result of the test.
How is the p-value of .2462 obtained in this problem? That is, what area
does this represent?
Get Answers For Free
Most questions answered within 1 hours.