Using the lengths (in.), chest sizes (in.), and weights (lb) of bears from a data set, the resulting regression equation is Weight= - 274+0.426 Length +12.1 Chest Size. The P-value is 0.000 and the adjusted R^2 value is 0.925. If an additional predictor variable of neck size (in.) is included, the P-value becomes 0.000 and the adjusted R^2 becomes 0.933. Why is it better to use values of adjusted Rsquared instead of simply using values of R^2?

a. The unadjusted R^2 decreases or remains the same as more variables are included, but the adjusted R2 is adjusted for the number of variables and sample size.
b. The unadjusted R^2 can only be calculated for regression equations with two or fewer predictor variables, while the adjusted R2 can be calculated for regression equations with any number of predictor variables.
c. The unadjusted R^2 increases or remains the same as more variables are included, but the adjusted R2 is adjusted for the number of variables and sample size.
d. The unadjusted R^2 can only be calculated for regression equations with P-values greater than 0, while the adjusted R2 can be calculated for regression equations with any manner of P-value.

Selected t-account balances for bloomfield company are shown below as of january 31, which reflect its accounting adjustments. the firm uses a calendar-year accounting period, but prepares monthly accounting adjustments.suppliesjan. 31 bal. 1,800 1,800 jan. 31 bal.supplies expensejan. 31 bal. 1,920 1,148 jan. 31 bal.prepaid insurancejan. 31 bal. 1,148 1,148 jan. 31 bal.insurance expensejan. 31 bal. 164 164 jan. 31 bal.wages payablejan. 31 bal. 1,400 1,400 jan. 31 bal.wages expensejan. 31 bal. 6,400 6,400 jan. 31 bal.truckjan. 31 bal. 17,376 17,376 jan. 31 bal.accumulated depreciation -truckjan. 31 bal. 5,068 5,068 jan. 31 bal.a. if the amount in supplies expense represents the january 31 adjustment for the supplies used in january, and $1,240 worth of supplies were purchased during january, what was the january 1 beginning balance of supplies? $answerb. the amount in the insurance expense account represents the adjustment made at january 31 for january insurance expense. if the original insurance premium was for one year, what was the amount of the premium, and on what date did the insurance policy start? amount of the premium $answerthe policy began on answerjune 1july 1august 1september 1october 1november 1 of the previous year.c. if we assume that no beginning balance existed in either in either wage payable or wage expense on january 1, how much cash was paid as wages during january? $answerd. if the truck has a useful life of four years (or 48 months), what is the monthly amount of depreciation expense, and how many months has bloomfield owned the truck? answermonths