The lifetimes of televisions produced by the Hishobi Company are normally distributed with a mean of 75 months and a standard deviation of 8 months. If the manufacturer wants to have to replace only 1% of its televisions, what should its warranty be?
Answer to relevant QuestionsAccording to the Statistical Abstract of the United States, 2012 (Table 721), the mean family net worth of families whose head is between 35 and 44 years old is approximately $325,600. If family net worth is normally ...Refer to Exercise 7.57. Find the probability that the project will take more than 60 days to complete.The time between breakdowns of aging machines is known to be exponentially distributed with a mean of 25 hours. The machine has just been repaired. Determine the probability that the next breakdown occurs more than 50 hours ...Use the t table (Table 4) to find the following values of t.a. t.005, 33b. t.10, 600c. t.05, 4d. t.01, 20Use a computer to find the following probabilities.a. P(χ273 > 80)b. P(χ2200 > 125)c. P(χ288 > 60)d. P(χ21000 > 450)
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