#4 - show your detailed calculation for the global test

#5- What is your evidence that justifies your conclusion?

The following information was obtained from a 6 months marketing program to launch a new software product. The dependent variable is the revenue generated in millions of dollars Source Residual Error Total 1- Your Tasks and Questions I.'_ Write the regression Equation 7. 987+. 122x1 1.220x20.63xB+. 523x4- .065x5 - How large is the sample? \"NN=51-1=52 - How many independent variables are there? -_ Conduct a global test of hypothesis to see if any of Reject the null hypothesis that the the sets of regresswn coefficients could be different overall sets of regression coefficients from zero (0). Use the .05 signicance level. will equal zero Note: Review pp.496-499 and Eq. 14-5 for this! State your conclusiOn about your ndings in (4) There is significant evidence that there is a model that represents the association between the response variable and at least one of the explanatory variables (formula exists that can be used Conduct a test of hypothesis for each independent Reject the null hypothesis for x1, x2, and variable to see if any of the sets of regression x4. We fail to reject the null hypothesis coefcients could be deferent from zero (0). Use the for x3 and x5. .05 signicance level. 8 State your reason for your answer in (7) 1 Because the p-value (0.114} is above the significance level of .05