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
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
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