The U.S. Bureau of Labor Statistics released hourly wage figures for various countries for workers in the manufacturing sector. The hourly wage was $30.67 for Switzerland, $20.20 for Japan, and $23.82 for the U.S. Assume that in all three countries, the standard deviation of hourly labor rates is $3.00.

Appendix A Statistical Tables

a.Suppose35manufacturing workers are selected randomly from across Switzerland and asked what their hourly wage is. What is the probability that the sample average will be between $30.00 and $31.00?

b.Suppose36manufacturing workers are selected randomly from across Japan. What is the probability that the sample average will exceed $21.00?

c.Suppose48manufacturing workers are selected randomly from across the United States. What is the probability that the sample average will be less than $23.00?

(Round the values of z to 2 decimal places, e.g. 15.25. Round your answers to 4 decimal places, e.g. 0.2513.)

a.

enter probability rounded to 4 decimal places

b.

enter probability rounded to 4 decimal places

c.

enter probability rounded to 4 decimal places