A methods and measurements analyst needs to develop a time standard for a certain task. In a preliminary study, he observed one of his workers perform this task five times, with the following results: Observation --- 1 --- 2 --- 3 --- 4 --- 5
Time(seconds) 84 ---76 - -80 --84 --76

How many observations should be made if the analyst wants to be 99.74 percent confident that the maximum error in the observed time is two seconds?

a. 25
b. 6
c. 49
d. 5
e. 36

Use the following account numbers and corresponding account titles to answer the following question. account no. account title (1) cash (2) merchandise inventory (3) cost of goods sold (4) transportation-out (5) dividends (6) common stock (7) selling expense (8) loss on the sale of land (9) sales which accounts would appear on the income statement?

Which investment has the liquidity and can be converted into cash easily?

8. problems and applications q8there are four consumers willing to pay the following amounts for haircuts, and there are four haircutting businesses with the following costs: consumers' willingness to payyvette: $35cho: $15sean: $45bob: $25firms' costsfirm a: $40firm b: $20firm c: $10firm d: $30each firm has the capacity to produce only one haircut. for should be given. which businesses should cut hair? check all that apply. firm afirm bfirm cfirm dwhich consumers should have their hair cut? check all that apply. bobchoseanyvettethe maximum possible total surplus is