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Scrat [10]
3 years ago
9

A sample of 25 measurements on a normally distributed quality characteristic has a mean of 85 and a standard deviation of 1. Usi

ng a confidence probability of 0.95, find a value such that 90% of the future measurements on this quality characteristic will lie above it?
Mathematics
1 answer:
kati45 [8]3 years ago
6 0

Answer:

Step-by-step explanation:

Given that:

  • n = 25
  • α = 0.01
  • γ = 0.95 one sided
  • x ~ N (85, 1)

From Appendix VIII: K= 1.838

So: x - KS = 85 - 1.838(1)  = 83.162

Hope it will find you well

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