Jensen tire & auto is deciding whether to purchase a maintenance contract for its new computer wheel alignment and balancing machine. managers feel that maintenance ex- pense should be related to usage, and they collected the following information on weekly usage (hours) and annual maintenance expense (in hundreds of dollars). a. develop a scatter chart with weekly usage hours as the independent variable. what does the scatter chart indicate about the relationship between weekly usage and annual maintenance expense? b. use the data to develop an estimated regression equation that could be used to predict the annual maintenance expense for a given number of hours of weekly usage. what is the estimated regression model? test whether each of the regression parameters b0 and b1 is equal to zero at a 0.05 level of significance. what are the correct interpretations of the estimated regression parameters? are these interpretations reasonable? d. how much of the variation in the sample values of annual maintenance expense does the model you estimated in part b explain? e. if the maintenance contract costs $3,000 per year, would you recommend purchasing it? why or why not?

On january 1, 2018, johnstone leased an office building. terms of the lease require johnstone to make 15 annual lease payments of $134,000 beginning on january 1, 2018. a 10% interest rate is implicit in the lease agreement. at what amount should johnstone record the lease liability on january 1, 2018, before any lease payments are made?

Martha is the head of the accounts department in a small manufacturing company. the company follows the accrual-basis method of accounting. it recently purchased raw materials worth $5,000 from its vendors. however, the company paid only $3,000 to its vendors. it plans to pay the remaining amount after three months. considering this information, which entry should martha record in the company’s accounts? a. $5,000 as accounts receivable b. $3,000 as accounts payable c. $2,000 as accounts payable d. $2,000 as accounts receivable

Assume that all of thurmond company’s sales are credit sales. it has been the practice of thurmond company to provide for uncollectible accounts expense at the rate of one-half of one percent of net credit sales. for the year 20x1 the company had net credit sales of $2,021,000 and the allowance for doubtful accounts account had a credit balance, before adjustments, of $630 as of december 31, 20x1. during 20x2, the following selected transactions occurred: jan. 20 the account of h. scott, a deceased customer who owed $325, was determined to be uncollectible and was therefore written off. mar. 16 informed that a. nettles, a customer, had been declared bankrupt. his account for $898 was written off. apr. 23 the $906 account of j. kenney & sons was written off as uncollectible. aug. 3 wrote off as uncollectible the $750 account of clarke company. oct. 20 wrote off as uncollectible the $1,130 account of g. michael associates. oct. 27 received a check for $325 from the estate of h. scott. this amount had been written off on january 20 of the current year. dec. 20 cater company paid $7,000 of the $7,500 it owed thurmond company. since cater company was going out of business, the $500 balance it still owed was deemed uncollectible and written off. required: prepare journal entries for the december 31, 20x1, and the seven 20x2 transactions on the work sheets provided at the back of this unit. then answer questions 8 and 9 on the answer sheet. t-accounts are also provided for your use in answering these questions. 8. which one of the following entries should have been made on december 31, 20x1?