2. Suppose we have the simple regression model Yi = + Xi+"i and their OLS coecient estimators a and b. Answer the following questions. (a) Suppose we multiply Xi by 1/2 for all i and do the OLS estimation again using 1 2Xi as the regressor (the independent variable). What will be your new estimators, denoted by ~a (intercept) and ~b (slope)? Compare them with the original OLS estimators a and b, respectively (b) Compare V ar[b] and V ar[~b]. Are they the same or di erent? Verify your answer (c) A t-statistic testing H0: = 0 is given by t(b) = b=S:E:(b). Show

Diversified semiconductors sells perishable electronic components. some must be shipped and stored in reusable protective containers. customers pay a deposit for each container received. the deposit is equal to the container’s cost. they receive a refund when the container is returned. during 2018, deposits collected on containers shipped were $856,000. deposits are forfeited if containers are not returned within 18 months. containers held by customers at january 1, 2018, represented deposits of $587,000. in 2018, $811,000 was refunded and deposits forfeited were $41,000. required: 1. prepare the appropriate journal entries for the deposits received and returned during 2018. 2. determine the liability for refundable deposits to be reported on the december 31, 2018, balance sheet.

Refer to the payoff matrix. suppose that speedy bike and power bike are the only two bicycle manufacturing firms serving the market. both can choose large or small advertising budgets. is there a nash equilibrium solution to this game?

Arestaurant that creates a new type of sandwich is using (blank) as a method of competition.