Question
The diameter of a brand of tennis balls is approximately normally distributed, with a mean of 2.63 inches and a standard deviation of 0.03 inch.
The diameter of a brand of tennis balls is approximately normally distributed, with a mean of 2.63 inches and a standard deviation of 0.03 inch. If you select a random sample of 9 tennis balls
a)what is the probability that the sample mean is less than 2.61 inches?
b)what is the probability that the sample mean is between 2.62 and 2.64 inches?
*ANSWER USING EXCEL FUNCTIONS PLEASE!
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Fundamentals Of Business Mathematics In Canada
Authors: F. Ernest Jerome, Jackie Shemko
3rd Edition
1259370151, 978-1259370151
