Review

All Three Types of T-Test Problems

For each problem, state which test you are using and why you chose it. Then, complete the requested calculations (including effect size and CI) and write the conclusion in words.

A cafeteria manager wanted to know if students would eat more often at the cafeteria if prices were lower. At present, the average student eats about 4 meals a week there. The manager lowered prices experimentally for a few weeks and then polled five students. Did these students eat in the cafeteria more often? Data are below. Use the .05 level.

Student	# times
A	3
B	7
C	4
D	5
E	3