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Christenson's Television Service is a local dealer of SONY Television sets. Mike Olson, store manager, has been trying to find ways to lower inventory levels because of increasing holding costs and limited storage space. Mike has est that the store sells about 800 SONY sets annually. Estimated holding cost is $30 per set and ordering cost is $20 per order.
a. Determine the optimal order quantityb. Determine the number of orders.c. Describe the inventory pattern graphically.d. What is the toal inventory cost per year?"
A researcher was interested in the emotional effects of music on exam performance. Before their exam, a professor took one group of students into a room in which calming music was played.
The following data on annual rates of return were collected from five stocks listed on the New York Stock Exchange ("the big board") and five stocks listed on NASDAQ.
First-order regression model was fit to data. Part of printout follows?
What is probability of selecting 2 families neither had taxes prepared by H&R Block?
A business finds the average cost required to complete a project is $416 with a standard deviation of $57. A sample of 36 project cost reports was selected at random.
Compute the probability of a stock-out for the order quantities suggested by members of the management team.
Medicare spending per patient in different U.S. metropolitan areas may differ. Based on the sample data below, is the average spending in the northern region significantly less than the average spending in the southern region at the 1 percent leve..
It is estimated that 2% of the athletes competing in a large tournament are users of an illegal drug to enhance performance. The test for this drug is 95% accurate. What is the probability that an athlete who tests positive is actually a user?
A sample of 400 tickets has 72% 1's. What percentage of the entire box do you expect to be 1's? What is the standard error of your estimate?
The following data represents the running time of films produced by 2 motion picture companies. Assume these are independent samples
Historical data suggests a standard deviation in the first sample of 10 and a standard deviation in the second sample of 16. Find a 95% confidence interval for the population difference.
What is the probability that the second one selected is defective given that the first one was defective? What is the probability that both are defective?
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