Question: 4. Comprehensive Section 1.Use the following distribution of sample values to compute the variance. 135510 Show Work! (2 points) 2.In a normal distribution of scores

4.Comprehensive Section

1.Use the following distribution of sample values to compute the variance.

135510Show Work! (2 points)

2.In a normal distribution of scores a mean of 800 and a standard deviation of 175, what percentage score 950 or more?(2 points)

3.Which of the following is an example of a nominal scale of measurement?

a. television station number

b. IQ

c. percentage correct on an exam

d. weight

4.What is the critical value of a two-tailed z-test with a = .05?

a..0199

b.1.64

c.1.65

d.1.96

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