Jeff prepares meals in the home of his customers.His fixed cost for transportation and supplies is $14.50.The labor and groceries needed for each family meal is $8.80,so the expense function is E = 5.7q + 8.8.

A three-year magazine subscription costing $136 may be cancelled at any time, and a prorated refund will be made for the remaining weekly issues. If Juanita cancels her subscription after receiving 17 issues in the second year, what refund should she get? Assume there are exactly 52 weeks in a year.

It is estimated that 780,000 surgical site infections (SSIs) occur each year.SSIs are the second most common type of healthcare-associated infections in U.S.hospitals and account for an extra $3.5 to $10 billion in healthcare costs per year.The national SSIs rate is 1.9%.A Georgetown medical office was interested in determining if their SSI rate were smaller than the national average.Out of a sample of 277 patients in their study,only one infection occurred.What is the standard error of
?

A) 0
B) Around .004
C) Greater than .1
D) None of the above

A measure of goodness of fit for the estimated regression equation is the

A) multiple coefficient of determination.
B) multicollinearity.
C) mean square due to regression.
D) studentized residual.

Calculate the equivalent interest rate (to the nearest 0.01%)

The hypothesis that posits no relationship between the variables in your study is the ______

A) directional hypothesis
B) nondirectional hypothesis
C) research hypothesis
D) null hypothesis

A researcher wished to compare the effect of the different rates of stepping on volunteers' heart rates in a step-aerobics workout.A collection of thirty adult volunteers,fifteen women and fifteen men,were selected from a local gym.The men were randomly divided into three groups of five subjects each.Each group did a standard step-aerobics workout,with Group 1 at a low rate of stepping,Group 2 at a medium rate of stepping,and Group 3 at a rapid rate.The women were also randomly divided into three groups of five subjects each.As with the men,each group did a standard step-aerobics workout,with Group 1 at a low rate of stepping,Group 2 at a medium rate of stepping,and Group 3 at a rapid rate.The mean heart rate at the end of the workout for all the subjects was determined in beats per minute. A partial ANOVA table for these data is given below. What is the value of the F statistic for testing the main effect of gender?

A) 0.01
B) 0.29
C) 5.32
D) 81.49