Amanufacturer knows that their items have a normally distributed length, with a mean of 7.1 inches, and standard deviation of 1.7 inches. round your answer to four decimals. if 24 items is chosen at random, what is the probability that their mean length is less than 6.2 inches?

0.0047

Step-by-step explanation:

Given : A manufacturer knows that their items have a normally distributed length, with a mean of 7.1 inches, and standard deviation of 1.7 inches.

i.e.

Sample size : n= 24

Let be the sample mean.

Formula :

Then, the probability that their mean length is less than 6.2 inches will be :-

hence,. the required probability = 0.0047

i think the answer is .36

step-by-step explanation:

what i did was only 2.88 divided by 8

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