Write the null and alternative hypotheses to test each of the following situations. a) an online electronics store is concerned about the timeliness of the delivery of their products. the vp of operations and marketing recently stated that she wanted the percentage of products delivered on time to be greater than 92%, and she wants to know if the company has succeeded. b) a realty company recently announced that the proportion of houses taking more than four months to sell is now less than 57%. c) a financial firm's accounting reports have an accuracy rate above 99%.

Xie company identified the following activities, costs, and activity drivers for 2017. the company manufactures two types of go-karts: deluxe and basic. activity expected costs expected activity handling materials $ 625,000 100,000 parts inspecting product 900,000 1,500 batches processing purchase orders 105,000 700 orders paying suppliers 175,000 500 invoices insuring the factory 300,000 40,000 square feet designing packaging 75,000 2 models required: 1. compute a single plantwide overhead rate, assuming that the company assigns overhead based on 125,000 budgeted direct labor hours. 2. in january 2017, the deluxe model required 2,500 direct labor hours and the basic model required 6,000 direct labor hours. assign overhead costs to each model using the single plantwide overhead rate.

Amanda works as an industrial designer

During january 2018, the following transactions occur: january 1 purchase equipment for $20,600. the company estimates a residual value of $2,600 and a five-year service life. january 4 pay cash on accounts payable, $10,600. january 8 purchase additional inventory on account, $93,900. january 15 receive cash on accounts receivable, $23,100 january 19 pay cash for salaries, $30,900. january 28 pay cash for january utilities, $17,600. january 30 firework sales for january total $231,000. all of these sales are on account. the cost of the units sold is $120,500. the following information is available on january 31, 2018. depreciation on the equipment for the month of january is calculated using the straight-line method. the company estimates future uncollectible accounts. at the end of january, considering the total ending balance of the accounts receivable account as shown on the general ledger tab, $4,100 is now past due (older than 90 days), while the remainder of the balance is current (less than 90 days old). the company estimates that 50% of the past due balance will be uncollectible and only 3% of the current balance will become uncollectible. record the estimated bad debt expense. accrued interest revenue on notes receivable for january. unpaid salaries at the end of january are $33,700. accrued income taxes at the end of january are $10,100