rygei2697
06.10.2019 •
Mathematics
What is the surface area of this right rectangular prism
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Ответ:
0.6745 is the probability that the mean clock life would be greater than 15.6 years.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 16 years
Standard Deviation, σ = 15 years
Sample size, n = 32
Standard error due to sampling =
We assume that the distribution of clock life is a bell shaped distribution that is a normal distribution.
Formula:
P(mean clock life would be greater than 15.6 years)
P(x > 15.6)
Calculation the value from standard normal z table, we have,
0.6745 is the probability that the mean clock life would be greater than 15.6 years.