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a. Suppose that $126,000 is to be allocated for advertising, research, and investment in the ratio 10:4:2. How much money will be allocated for each?
b. Electric Depot sells boxes of high efficiency light bulbs ($8 box) and switch plates ($10 each). In June, total sales were $42000. Customers bought 5 times as many boxes of light bulbs as switch plates. How many of each did Electric Depot sell?
Suppose you take a random sample of 25 from a lot of 1,000 items but later realize that you should have selected a sample of 40 items instead. How do you correct this error?
Assume a sample of 400 American adults were taken. Show the sampling distribution of the proportion of adults who balance their checkbook at least once a month.
A United Nations report shows the mean family income for Mexican migrants to the U.S.. is $27,000 per year. A FLOC evaluation of a sample 25 Mexican families units reveals a mean to be $30,000 with a sample standard deviation of $10,000.
Use exponential smoothing to develop simple, trend (Holt's), and seasonal models (both simple and trend) for forecasting the quarterly revenue from 1-year batteries.
Assuming that the process is operating correctly according to specifications, what is the probability that a sample will indicate that an adjustment is needed?
To model this fact, we assume that only half of the goods produced during a week can be used to meet the current week's demand (assume that all of the prior week's ending inventory can be used to meet the current week's demand). Determine how to m..
The critical F value with 6 numerator and 60 denominator degrees of freedom at α = .05 is:
If Molly and Kathleen wishes to make a profit of $5,000 for summer, how many pupils do they require to enrol?
A study 200 nurses found that of 125 females nurses, 56 had bachelor's degree; and of 75 male nurses; 34 had bachelor degrees. if a nurse is selected at random, find the probability that the nurse is a female nurse with a bachelor degree.
A store manager wishes to find out whether there is a relationship between the age of her employees and the number of sick days they take each year. The data for the sample are shown below:
A sample of 100 observations has a mean of 2.99 and a standard deviation s equal to 0.5 Conduct the following test of hypotheses about the corresponding population mean at a level of significance of α = 0.2
The probability that a bomber hits a target on a bombing mission is 0.700. Three bombers are sent to bomb a particular target.
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