Acar dealer who sells only late-model luxury cars recently hired a new salesperson and believes that this salesperson is selling at lower markups. he knows that the long-run average markup in his lot is $5,600. he takes a random sample of 16 of the new salesperson’s sales and finds an average markup of $5,000 and a standard deviation of $800. assume the markups are normally distributed. what is the value of an appropriate test statistic for the car dealer to use to test his claim? multiple choice1.t15 = –0.752.z = –3.003.z = –0.754.t15 = –3.00

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below. trans typ./ check no. date description of transaction payment/ debit deposit/ credit (+) balance 1,200 00 324 10/6 miller's food market 45.87 45 87 groceries 1,154 13 325 10/7 cyber center computer outlet 218.59 218 59 monitor 935 54 326 10/9 sandy's beauty salon 30.00 30 00 haircut and styling 900 59 deposit 10/10 paycheck 621.33 621 33 1,621 92 evaluate leslie's check register. a. leslie did a good job. everything is correct. b. the final balance is wrong; she did not add everything correctly. c. leslie should have written debit instead of deposit for the transaction type. d. leslie switched the debit and credit columns.