Question

A population of 1,000 students spends an average of $10.50 a day on dinner. The standard deviation of the expenditure is $3. A simple random sample of 64 students is taken. a. What are the expected value, standard deviation, and shape of the sampling distribution of the sample mean

Answer 1

The answer would be to 10.5

Answer 2

expected value is the mean : 10.5

Standard error for the sampling distribution : 0.375

it has a bell-shaped curve with 99.7% of the values between 9.375 and 11.625

Explanation: