Amanufacturer of detergent claims that the contents of boxes sold "are guaranteed to weigh on average at least 18 ounces". if this claim turns out to be false, the manufacturer will face a high fine. the distribution of weight is known to be normal, with a standard deviation of 0.6 ounce. a random sample of 16 boxes yielded a sample mean weight of 19ounces. (a)does the sample provide evidence at the 5% significance level to put the manufacturer's mind at peace in terms of the possible fine? (b)does the sample provide evidence at the 5% significance level for the state to persecute the manufacturer for false claim?

Milden company has an exclusive franchise to purchase a product from the manufacturer and distribute it on the retail level. as an aid in planning, the company has decided to start using a contribution format income statement. to have data to prepare such a statement, the company has analyzed its expenses and has developed the following cost formulas: cost cost formula cost of good sold $35 per unit sold advertising expense $210,000 per quarter sales commissions 6% of sales shipping expense ? administrative salaries $145,000 per quarter insurance expense $9,000 per quarter depreciation expense $76,000 per quarter management has concluded that shipping expense is a mixed cost, containing both variable and fixed cost elements. units sold and the related shipping expense over the last eight quarters follow: quarter units sold shipping expense year 1: first 10,000 $ 119,000 second 16,000 $ 175,000 third 18,000 $ 190,000 fourth 15,000 $ 164,000 year 2: first 11,000 $ 130,000 second 17,000 $ 185,000 third 20,000 $ 210,000 fourth 13,000 $ 147,000 milden company’s president would like a cost formula derived for shipping expense so that a budgeted contribution format income statement can be prepared for the next quarter. required: 1. using the high-low method, estimate a cost formula for shipping expe