H0: ϻ ≤ 16.74 VS HA: ϻ > 16.74
What is the test statistic for sample of size 22, mean 13.56, and standard deviation 2.69? Enter the test statistic with 2 decimal places.
solution:
The null and alternative hypothesis is ,
H0 : 16.74
Ha :
>16.74
Test statistic = t
= (
-
) /
/
n
= (13.56-16.74) / 2.69/
22
= -5.54
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