ike to predict weekly gross revenue as a function of advertising expenditures. Historical data for a sample of eight weeks follow. (a) Use α=0.01 to test the hypotheses H0:β1=β2=0Ha:β1 and/or β2 is not equal to zero for the model y=β0+β1x1+β2x2+ε, where x1= television advertising ($1,000 s)x2= newspaper advertising ($1,000 s). Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value = (b) Use α=0.05 to test the significance of β1. Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value = (c) Use α=0.05 to test the significance of β2. Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value =