The closing price of Schnur Sporting Goods, Inc., common stock is uniformly distributed between $17 and $41 per share. What is the probability that the stock price will be:

a. More than $26? (Round the final answer to 1 decimal place.)

Probability

b. Less than or equal to $23? (Round the final answer to 1 decimal place.)

Probability

The mean of a normal probability distribution is 400; the standard deviation is 60. Refer to the table in Appendix B.1.(Round the final answers to 2 decimal places.)

a. About what percentage of the observations lie between 340 and 460?

Percentage of observations %

b. About what percentage of the observations lie between 280 and 520?

Percentage of observations %

c. About what percentage of the observations lie between 220 and 580?

Percentage of observations

A normal population has a mean of 19.1 and a standard deviation of 3.9. Refer to the table in Appendix B.1.

a. Compute the z-value associated with 25.0. (Round the final answer to 2 decimal places.)

z =

b. What proportion of the population is between 19.1 and 25.0? (Round z-score computation to 2 decimal places and the final answer to 4 decimal places.)

Proportion

c. What proportion of the population is less than 18.0? (Round z-score computation to 2 decimal places and the final answer to 4 decimal places.)

Proportion