need help before 6 today please help?

In previous test, baseballs were dropped 24ft. onto a concrete surface, and they bounced an average of 235.5cm. In a test of a sample of 40 new balls, the bounce heights had a mean of 239.8. and a standard deviation of bounce heights 4.4cm Use a 0.01 significance level to determine whether there is sufficient evidence to test the claim that the new balls have bounce heights with a mean different from 235.5 cm. Does it appear that the new baseball are different?

what are the hypothesis

what is the value of the test static z= round to the 2 decimals place

identify the critical values

1 Answer

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  • Harry
    Lv 6
    9 years ago
    Favorite Answer

    next time don't wait till the last minute..to do your home work

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