When interpreting F_(2,27) = 8.80,p < 0.05,what is the within-groups df?

A) 30
B) 27
C) 3
D) 2

A researcher collects data from a group of 25 people at Time 1 and Time 2. Assuming α = .05 (two-tailed) , the critical value is ______.

A) 2.064
B) 2.069
C) 2.492
D) 2.797

Rajesh invested $30,000 into an account that has a monthly rate of return of 0.79%.He has made arrangements to withdraw $250 automatically every month to pay off his 10-year student loan.Will Rajesh have enough money in the account to cover all of the required loan payments? If so,how long can he continue to withdraw $250 each month to put toward a car payment? (Round to the nearest year. )

A pair of noise-cancelling headphones retails for $349. The dealer's overhead is 25% of cost, and normal operating profit is 16 $\frac{2}{3}$ % of cost.
a) What is the largest amount of markdown that will allow the dealer to break even?
b) What rate of markdown will price the headphones at cost?

A weekly payroll register shows that Carla Mitchell had total wages of $402. She had deductions of $30.75 for FICA tax, $46.40 for federal income tax, and $18 for medical insurance. Compute Mitchell's net pay.​

Data on ________ is most likely to be collected using surveys,interviews,and focus groups.

A) customer satisfaction
B) material usage
C) sales
D) fixed input costs