Please click on the link above to submit this week's assignment. Individual Assignment 1 - Based on Chapter 7 Q1. Students of a large university spend an average of $12 a day on lunch. The standard deviation of the expenditure is $3. A simple random sample of 30 students is taken. a. What are the expected value, standard deviation, and shape of the sampling distribution of the sample mean? b. What is the probability that the sample mean will be less than $11.00? c. What is the probability that the sample mean will be greater than $12.50