C. d. e. Perform the classical t-tests for all parameters at the 1%, 5% and 10% levels. Also, derive the associated p- values. Test the hypothesis that the above model (1)

is reasonable. That is, perform the classical F-test on the joint hypothesis Ho: B₂=0, P3=0 against H₁: at least one is non-zero Perform the test at the 1%, 5% and 10% levels. Comment on the outcome. The sample means of price and sales pc over time is $90.75 and 3001.33, respectively. Estimate the price elasticity of sales. Also, for a 10% increase in the price, predict the percent change of sales./n