Find the p -value for the hypothesis test. A random sample of size 51 is taken. The sample has a mean of 392 and a standard deviation of 83. H 0 : µ = 400 H a : µ< 400 The p -value for the hypothesis test is .
Your answer should be rounded to 4 decimal places.
This is the left tailed test .
The null and alternative hypothesis is ,
H0 :
= 400
Ha :
<400
Test statistic = z
= (
-
) /
/
n
= (392 -400) /83 /
51
= −0.69
P(z < -0.69 ) = 0.2451
P-value = 0.2451
Find the p -value for the hypothesis test. A random sample of size 51 is taken. The sample has a mean of 392 and a stand...
Find the p-value for the hypothesis test. A random sample of size 51 is taken. The sample has a mean of 392 and a standard deviation of 83. H0: µ = 400 Ha: µ< 400 The p-value for the hypothesis test is . Your answer should be rounded to 4 decimal places. Question 16
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