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For a certain wine, the mean pH (a measure of acidity) is supposed to be 3.32...

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Basic Math

For a certain wine, the mean pH (a measure of acidity) issupposed to be 3.32 with a known standard deviation of ? =.14. The quality inspector examines 31 bottles at random to testwhether the pH is too low, using a left-tailed test at ? =0.05.

(a) What is the power of this test if the truemean is ? = 3.30?

(b) What is the power of this test if the truemean is ? = 3.28?

(c) What is the power of this test if the truemean is ? = 3.26?

Answer & Explanation Solved by verified expert
3.7 Ratings (397 Votes)
Let denotes the mean pH levelTo test against At 5    See Answer
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