Question 1

A national report claims that 70% of people who graduate high school enroll in college. 30 out of the 50 people (who graduated high school) reported that they were enrolled in college. Can you prove their claim that 70% of people who graduate high school enroll in college? Use a .05 level of significance. Make the decision regarding H0.

	Do Not Reject HI
	Reject Ho

	Reject HI
	Do Not Reject Ho

Question 2

According to USA Today, the average cost of a private university is $50,000 with a population standard deviation of $2,500. 100 universities are randomly selected and the average income of those 100 universities was $49,450. Using the 5 step hypothesis testing process, can you support the claim that the average cost of private universities are decreasing? Use a .01 significance level. (Use the z or t value of -2.2)What is the p-value?

	.0278
	.4861

	.0139
	.0101

Question 3

Children on average collect 35 pieces of candy on Halloween. Halloween 2015 you sample 40 children and count their candy bags. Assume a normal distribution with a standard deviation of 5 pieces. What is the probability that: The sample mean is 33 or more pieces of candy?

	2.53%
	5.7%

	49.43%
	99.43%