For the year 2018, a company provides the following information: amount 4,000 30,000 description budgeted output budgeted raw materials to be used in pounds) budgeted raw materials price per pound budgeted labor rate per hour budgeted labor hours $0.20 $15.00 2,000 actual output actual raw materials used in pounds) 4,200 32,000 actual raw materials price per pound actual labor rate per hour actual labor hours $0.18 $14.50 2.050 compute the direct materials price variance. a. the direct materials price variance is $600(favorable) b. the direct materials price variance is $640(unfavorable). c. the direct materials price variance is $640(favorable) d. the direct materials price variance is $600(unfavorable)

Rate of return, standard deviation, coefficient of variation personal finance problem mike is searching for a stock to include in his current stock portfolio. he is interested in hi-tech inc.; he has been impressed with the company's computer products and believes hi-tech is an innovative market player. however, mike realizes that any time you consider a technology stock, risk is a major concern. the rule he follows is to include only securities with a coefficient of variation of returns below 1.07. mike has obtained the following price information for the period 2015 through 2018:hi-tech stock, being growth-oriented, did not pay any dividends during these 4 years. a. calculate the rate of return for each year, 2015 through 2018, for hi-tech stock. b. assume that each year's return is equally probable and calculate the average return over this time period. c. calculate the standard deviation of returns over the past 4 years. (hint: treat this data as a sample.) d. based on b and c determine the coefficient of variation of returns for the security. e. given the calculation in d what should be mike's decision regarding the inclusion of hi-tech stock in his portfolio?