A forecaster used the regression equation Q=a+b+q+c202 + c303 and quarterly sales data for 1998/2016/V(-1,72) for an appliance manufacturer to obtain the results shown below. Qis quarterly sales, and D, D and D3 are dummy variables for quarters I, II and III. DEPENDENT VARIABLE QT R-SQUARE 08798 OBSERVATIONS 72 VARIABLE INTERCEPT T 01 02 PARAMETER ESTIMATE 25 12.0 300 450 F-RATIO 122 547 STANDARD ERROR 12.54 0860 326 10 68 P-VALUE ON F 00001 T-RATIO 287 291 244 P-VALUE 00055 00049 0.0005 00066 00174

E2

Businesses that offer repayment plans for purchases are required by law to disclose the interest rate. But that dosent mean they let you go out of there way to let you know what it is. you have to read all the paper work. Find the interest rate for the follwing purchase.  For a 312 square- foot family room, you choose carpert that costs $1.44 per square foot. The tax rate is 6.1% and youre offered 24 payemnts of 27.61. Round to one decimal, if necessary.