for the 269 students in question 1 with mean study time -x =137 minutes and 0=65

Question

for the 269 students in question 1 with mean study time -x =137 minutes and 0=65 minutes, if we regard these students as an SRS from the population of all first year students at this university. does the study give good evidence that students claim to study more than 2 hours per night on the average? state the null and alternative hypotheses in terms of the mean study time in minutes for the population. what is the value of the test statistic z ? what is the P-VALUE OF THE TEST? can you conclude that students do claim to study more than two hours per weeknight on the average?

Explanation / Answer

HO : miu = 120

Ha : miu > 120

Z = ( 137 - 120 ) / ( 0.65 / srqt 269 )

Z = 428.95

p value is 0.0000000

wse conclude that

students do claim to study more than two hours per weeknight on the average

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