A certain type of tennis ball should have a height of bounce, which is normally distributed...

A certain type of tennis ball should have a height of bounce, which is normally distributed with a mean of 140 cm. A sample of 65 tennis balls is tested and the mean height of bounce of the sample is 144 cm with a sample standard deviation of 6.3 cm. At the 5 percent level of significance, is there evidence that this type of tennis ball is not meeting the specification?

Step 1 (1 mark) H0: _________________________

H1: _________________________

Step 2 (1 mark)
 = ______________ z = ___________________

Step 3 z-test statistic (show formula and calculations):

Step 4 Decision rule and decision (include a diagram):

Step 5 Conclusion:

Expert Solution

ball is not meeting the specification.

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orchestra answered 2 years ago

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