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Among a random sample of 500 students the mean number of hours worked per week at...

Among a random sample of 500 students the mean number of hours worked per week at non-college related jobs is 14.6. This means lies less 0.4 standard deviations below the mean of the sampling distribution. If a second sample of 500 students is selected what is the probability that the second sample , the mean number of hours worked will be less than 14.6?

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Answer #1

Given n =500; Mean =14.6;

This mean lies 0.4 standard deviations below the mean of the sampling distributions

Actual mean of the population = standard deviation =

mean lies 0.4 standard deviation below the mean of the sampling distributions

Now we need to probability that for the second sample

Let Mean of the second sample is X

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