The Diameter of Small Nerf Balls Manufactured Overseas Is Expected

question 51

Multiple Choice

The diameter of small Nerf balls manufactured overseas 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) .040%
• B) 22.66%
• C) 4.3%
• D) .00043%

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