The Diameter of Small Nerf Balls Manufactured at a Factory

question 6

Multiple Choice

The diameter of small Nerf balls manufactured at a factory in China is expected to be approximately normally distributed with a mean of 5.2 inches and a standard deviation of .08 inches.Suppose a random sample of 20 balls is selected.What percentage of sample means will be less than 5.14 inches?

• A)0.043%
• B)22.66%
• C)4.3%
• D).00043%

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Definitions:

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