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The overhead reach distance of adult females are normally distributed with a mean of 205.5 cm...

The overhead reach distance of adult females are normally distributed with a mean of 205.5 cm and a standard deviation 8.6

A. Find the probability that an individual distance is greater than 214.80cm

b.find the probability that the mean 25 randomly selected distances is greater than 203.70

c. why

Math   Statistics-And-Probability   
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Answer #1

A;

B:

-------------------------------

c:

Since it is given that population is normally distributed so even though sample size is less than 30 we canuse CLT.

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