SOLUTION: Are the following statements a valid pair of null and alternative hypothesis? Ho: U> 5 and Ha: u<17? Is the following a valid null statement? Ho : 13=11? 3.) Assume that a

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Question 444133: Are the following statements a valid pair of null and alternative hypothesis?
Ho: U> 5 and Ha: u<17?
Is the following a valid null statement?
Ho : 13=11?
3.) Assume that a 95% confidence interval for the mean is (13.0, 15.0). What is the result of a hypothesis test of Ho u =1.0 at a (alpha) = 0.05?
Answer by stanbon(75887) (Show Source):
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Are the following statements a valid pair of null and alternative hypothesis?
Ho: U> 5 and Ha: u<17?
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No; Equality must ALWAYS be stated in Ho.
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Is the following a valid null statement?
Ho : 13=11?
No; it is a contradiction : it does not make a
statement about a population parameter.
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3.) Assume that a 95% confidence interval for the mean is (13.0, 15.0). What is the result of a hypothesis test of Ho u = 1.0 at a (alpha) = 0.05?
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Reject Ho.
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Cheers,
Stan H.