Question: consider the 2 cases below in both cases the null...
Question details
Consider the 2 cases below. In both cases the null and alternative hypothesis being tested
are
H0: µ=50
H1: µ<50 (the population mean is less than 50).
Case |
N |
xbar |
s |
xbar-50 |
Standard |
Test |
p-value |
1 |
400 |
49.6 |
4 |
-0.4 |
0.2 |
-2 |
0.023 |
2 |
100 |
49.6 |
4 |
-0.4 |
0.4 |
-1 |
0.16 |
Which pair of diagrams gives a plausible representation of test stat and p-value for Case 1 and Case 2?