Question

1. The average number of cups of coffee people in the population drink per week is 62, with a standard deviation of 15.75. We are interested in whether college students drink more coffee per week. In a sample of 100 college students, the average number of cups of coffee consumed per week was 64. Do college students drink significantly more cups of coffee a week than the population? The level of significance is .05.
What is the critical value?

Answer 1

If I’m not wrong, there’s a table of standard deviations that will tell you the critical value