You are a developmental psychologist and are interested in how math anxiety changes with age. You go into an elementary school and measure the math anxiety of 15 children who are in the 2^nd grade. Assume that this is an interval variable and that higher scores indicate higher levels of math anxiety.

You know that nationally 2^nd grade students have a math anxiety level of 3.00 with a standard deviation 1.75.

Question 39 (3 points)

What is the z score associated with a math anxiety level of 4?

Question 39 options:

	.57
	-.57
	1.25
	.31

Question 40 (3 points)

What proportion of 2nd graders have math anxiety levels greater than 4?

Question 40 options:

	.7843
	.2843
	.2157
	.7157

Question 41 (3 points)

What proportion of 2nd graders have math anxiety levels between the mean and4?

Question 41 options:

	.7843
	.2843
	.7157
	.2157

Question 42 (3 points)

What is the z score associated with a math anxiety level of 1?

Question 42 options:

	-.43
	-1.14
	+.43
	+1.14

Question 43 (3 points)

What proportion of 2^nd graders have math anxiety levels greater than 1?

Question 43 options:

	.8729
	.3729
	.6271
	.1271

Question 44 (3 points)

What proportion of 2^nd graders have math anxiety levels less than 1?

Question 44 options:

	.8729
	.3729
	.6271
	.1271

Question 45 (3 points)

What proportion of 2nd graders have math anxiety between 1 and 4?

Question 45 options:

	.5000
	.3800
	.5886
	.2856

Question 46 (3 points)

If a student had a z score of .50, what was his math anxiety level?

Question 46 options:

	4.00
	3.88
	3.50
	0.00