The distribution of the amount of money undergraduate students spend on books for a term is slightly right-skewed,with a mean of $400 and a standard deviation of $80.In a simple random sample of 100 undergraduate students,what is the expected value of the sample mean amount of money spent on books?
A)$400
B)Anywhere between $320 and $480
C)Anywhere between $392 and $408
D)This can't be determined from the information given.

Question

Quizplus · Accepted Answer

The expected value of the sample mean is equal to the population mean, which is $400.

The Distribution of the Amount of Money Undergraduate Students Spend