SOLUTION: A baseball team claims that the mean length of its games is less than 2.5 hours . State in words in symbols the null hypothesis and the alternative hypothesis. Then determine whet

Question 1042526: A baseball team claims that the mean length of its games is less than 2.5 hours . State in words in symbols the null hypothesis and the alternative hypothesis. Then determine whether the hypothesis test is left- tailed or right- taile, or two- tailed. Explain your reasoning.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A baseball team claims that the mean length of its games is less than 2.5 hours . State in words in symbols the null hypothesis and the alternative hypothesis. Then determine whether the hypothesis test is left- tailed or right- taile, or two- tailed. Explain your reasoning.
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Ho: u >= 2.5
Ha: u < 2.5 (claim)
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Note:: Equality must ALWAYS be in Ho.
Note:: Ha ALWAYS determines the type of test
"less than" is a left tail test
"greater than" is a right tail test
"is not equal to" is a 2-tail test
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Note:: Your test is a left-tail test.
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Cheers,
Stan H.
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