Question: On 12 days selected at random a city s consumption of
On 12 days selected at random, a city’s consumption of electricity was 6.4, 4.5, 10.8, 7.2, 6.8, 4.9, 3.5, 16.3, 4.8, 7.0, 8.8, and 5.4 million kilowatt- hours. Assuming that these data may be looked upon as a random sample from a gamma population, use the estimators obtained in Example 10.14 to estimate the parameters α and β.
Answer to relevant QuestionsCertain radial tires had useful lives of 35,200, 41,000, 44,700, 38,600, and 41,500 miles. Assuming that these data can be looked upon as a random sample from an exponential population, use the estimator obtained in Exercise ...In a random sample of the teachers in a large school district, their annual salaries were $ 23,900, $ 21,500, $ 26,400, $ 24,800, $ 33,600, $ 24,500, $ 29,200, $ 36,200, $ 22,400, $ 21,500, $ 28,300, $ 26,800, $ 31,400, $ ...With reference to Example 10.20, find P(712 < M < 725| = 692). Example 10.20 A distributor of soft- drink vending machines feels that in a supermarket one of his machines will sell on the average µ0 = 738 drinks per week. ...Fill in the details that led from the probability on page 325 to the confidence-interval formula of Theorem 11.10. An efficiency expert wants to determine the aver-age amount of time it takes a pit crew to change a set of four tires on a race car. Use the formula for n in Exercise 11.6 to determine the sample size that is needed so that ...
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