1. Suppose teachers in a certain state earn an annual salary of $54,600, on average. The standard deviation is $10,200. The salaries are normally distributed. Mrs. Myers is a teacher who earns $45,000 annually. What kind of z-score will Mrs. Myers have?

A. Zero

B. Negative

C. Positive

2. Suppose teachers in a certain state earn an annual salary of $54,600, on average. The standard deviation is $10,200. The salaries are normally distributed. Mrs. Miller is a teacher who has an annual salary of $54,600. What kind of z-score will Mrs. Miller have?

A. Positive

B. Zero

C. Negative

3. What is the general rule of thumb for being within a statistically normal (non-significant) range, as long as the data come from an approximately bell-shaped distribution?

A. Fall below the 50th percentile

B. Fall above the 50th percentile

C. Fall within 1 standard deviation of the mean

D. Fall within 2 standard deviations of the mean

4. Suppose teachers in a certain state earn an annual salary of $54,600, on average. The standard deviation is $10,200. The salaries are normally distributed. To be considered a statistically significant low salary, a teacher's salary would need to be lower than what value?

A. $54,400

B. $40,000

C. $34,200

D. $54,600

E. $24,000

5. Suppose teachers in a certain state earn an annual salary of $54,600, on average. The standard deviation is $10,200. The salaries are normally distributed. To be considered a statistically significantly high salary, a teacher's salary would need to be above what value?

A. $54,800

B. $85,200

C. $75,000

D. $80,000

E. $54,600

6. Suppose the mean SAT score for a certain year was 1060 with a standard deviation of 194. John scored a 1160 on the SAT. What is his z-score?

A. 100

B. -100

C. -0.52

D. 0.52