if a p-value reported in the Excel linear regression output associated with a particular variable is 0.007, the confidence interval for the related regression coefficient excludes the zero value at: O a. the 90% confidence level. O b. both the 90% and 95% confidence levels. O c. the 99%% confidence level. O d. the 95% confidence level. O e. none of the answers providedIf three quarterly dummy variables representing first, second and fourth quarters are added to a regression model to account for the quarterly effects, then the estimated regression coefficient associated with the first quarter dummy variable is the estimated first quarter effect relative to: O a. none of the answers provided. O b. the first quarter. O c. the third quarter. O d. the fourth quarter. O e. the second quarter.A f test statistic in the Excel linear regression output associated with an individual independent variable is reported as -1, then it indicates the associated independent variable is () a. not statistically significant at the 90% confidence level. O b. statistically significant at the 99% confidence level. O c. statistically significant at the 90%% confidence level. O d. statistically significant at the 95% confidence level. O e. not statistically significant at the 95% confidence level.To compare the goodness of fit of two multiple linear regression models we use: Select one: O a. F tests. O b. level of confidence. O c. t tests O d. p-values. O e. Adjusted R-square valueif a p-value reported in the Excel linear regression output associated with a particular variable is 0.004, it would indicate this variable: O a. is not significant at the significance level 5%. O b. is not significant at the significance level 10%. O c. is significant at the significance level 1%. O d. is significant at the significance level 5%. O e. is significant at the significance level 10%.Let X be the normal random variable with the mean O and standard deviation 2. What is the probability for * taking a value that is less than 0.46? O a. 409%. O b. 18.2%. O c. 4203%. O d. 59.1%. Oe. 23.0%