Find the p-value for the hypothesis test. A random sample of size 51 is taken. The sample has a mean of 423 and a standard deviation of 84.
H0: µ = 400
Ha: µ > 400
The p-value for the hypothesis test is ____
Your answer should be rounded to 4 decimal places.
This is right two tailed test .
The null and alternative hypothesis is ,
H0 :
= 400
Ha :
>400
Test statistic = z
= (
-
) /
/
n
= (423-400) /4 /
51
= 1.96
P(z >1.96 ) = 1 - P(z <1.96 ) = 1 - 0.9750=0.0250
P-value = 0.0250
Find the p-value for the hypothesis test. A random sample of size 51 is taken. The...
Find the p-value for the hypothesis test. A random sample of size 51 is taken. The sample has a mean of 423 and a standard deviation of 84. H0: µ = 400 Ha: µ > 400 The p-value for the hypothesis test is . Your answer should be rounded to 4 decimal places.
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