Jason earns $17.00 per hour for a forty-hour week. His overtime rate is 1 ½ times any hours exceeding forty in a week. What will Sam's gross earnings be for a week if he works 42.5 hours?

A business group is considering establishing an endowment to allow eligible employees an opportunity to further their education. The amount of the grant available will be $10,000 per month. If the amount the business group is investing is $2 million, what nominal rate of return must the investment earn to fully fund the grant?

Construct a frequency distribution for the set of data below. Use five classes, beginning with "20 up to 30," then "30 up to 40," then "40 up to 50," then "50 up to 60," and finally "60 up to 70."
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Choo Choo Paper Company produces papers of various thickness.A random sample of 300 cuts of a specific variety had a mean thickness of 35.3 mils with a standard deviation of 5 mils.Develop a 95% confidence interval for the mean thickness of the population.