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probability statistics
Logistics planner forecasts that the expected annual demand for radio batteries will be 20,000 units. The analysis suggests that there is an 80% probability that the value will be between 15,000 and 25,000 units. And a plot of the underlying data indicates that the demand curve is for all practical purposes a normal curve. (Numeric answers to three decimal points.)
Question answer .a. Sketch the distribution. Be sure to label the units, and to show the mean and the standard deviation. (use a separate sheet) .b. What is the probability that the demand will be 18,570 batteries? ? .c. What is probability that the demand will be less than 18,000 batteries? ? .d. What is the probability that the demand will be greater than 16,250 batteries? ? .e. What is the probability that the demand will be between 22,000 and 17,750 batteries? ? .f. The batteries cost $7.50 each. The budget is $125,000. How many batteries can we purchase? 16666.667 |
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