The manager of a laptop computer dealership is considering a new bonus plan in order to increase sales. currently, the mean sales rate per salesperson is five laptops per week. the correct set of hypotheses for testing the effect of the bonus plan is a. h0: μ < 5 ha: μ ≥ 5. b. h0: μ > 5 ha: μ 5. c. h0: μ 5 ha: μ > 5. d. h0: μ 5 ha: μ < 5.

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4