# If the mean time between in-flight aircraft engine shutdowns is 12500 operating hours, the 90th percentile of waiting times to the next shutdown will be?

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- Men ages(20-29) have meanheight 69.3 with s.dev of 2.5 in. An analyst wonders if sd of majorleague players less than 2.5 in. Heights of 20 random players are:72, 74, 71, 72,76,70,77,75,72,72,77,73,75,70,73,74,75,73,74,73. Can you help me find the P value?
- H0: μ = 100 H1: μ ≠ 100 σ = 10,𝑛 = 100,𝑥̅ = 100,𝛼 = 0.05 Calculate the value of the test statistic, set up the rejection region, determine the p-value, interpret the result, and draw the sampling distribution. How?
- If the mean time between in-flight aircraft engine shutdowns is 12500 operating hours, the 90th percentile of waiting times to the next shutdown will be?
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