Pretzels In order to judge the effectiveness of an advertising campaign for a certain brand of pretzel, a company obtained a simple random sample of convenience store receipts the week before the ad campaign began, and found that of them showed a purchase of the pretzels. Another simple random sample of receipts was taken the week after the ad campaign, and of them showed a pretzel purchase. Required:
a. Construct a 98% confidence interval for the difference between the proportions of customers purchasing pretzels before and after the ad campaign.
b. A marketing manager claims that the proportion of customers who purchased pretzels did not change after the ad campaign. Does the confidence interval contradict this claim?

In allentown, pennsylvania, in the summer of 2014, the average price of a gallon of gasoline was $3.68long dasha 22-cent increase from the year before. many consumers were upset by the increase. one was quoted in a local newspaper as saying, "it's crazy. the government should step in." source: sam kennedy, "valley feeling pain at the pump," (allentown, pa) morning call, june 21, 2014. suppose the government had stepped in and imposed a price ceiling equal to old price of $3.46 per gallon. a. using the line drawing tool, draw and label the price ceiling. carefully follow the instructions above, and only draw the required object.

Required information [the following information applies to the questions displayed below.] the following data is provided for garcon company and pepper company. garcon company pepper company beginning finished goods inventory $ 13,800 $ 18,850 beginning work in process inventory 16,700 20,700 beginning raw materials inventory 8,800 13,500 rental cost on factory equipment 28,250 26,650 direct labor 22,400 37,400 ending finished goods inventory 17,300 14,300 ending work in process inventory 23,200 19,400 ending raw materials inventory 5,900 9,600 factory utilities 11,250 15,000 factory supplies used 10,900 5,700 general and administrative expenses 32,500 44,500 indirect labor 2,500 9,880 repairs—factory equipment 4,820 2,150 raw materials purchases 41,500 63,000 selling expenses 54,800 49,000 sales 238,530 317,510 cash 33,000 23,700 factory equipment, net 222,500 124,825 accounts receivable, net 13,400 23,950 required: 1. complete the table to find the cost of goods manufactured for both garcon company and pepper company for the year ended december 31, 2017. 2. complete the table to calculate the cost of goods sold for both garcon company and pepper company for the year ended december 31, 2017.

University car wash built a deluxe car wash across the street from campus. the new machines cost $219,000 including installation. the company estimates that the equipment will have a residual value of $19,500. university car wash also estimates it will use the machine for six years or about 12,500 total hours. actual use per year was as follows: year hours used 1 3,100 2 1,100 3 1,200 4 2,800 5 2,600 6 1,200 prepare a depreciation schedule for six years using the following methods: 1. straight-line. 2. double-declining-balance. 3. activity-based.