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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
error

Test
stat

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?

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