What is wrong with these hypotheses? H0: x bar = 23 Ha: x bar > 23

What is wrong with these hypotheses?

H0: x bar = 23

Ha: x bar > 23

Expert Solution

H0 : = 23

Ha : > 23

Case 1: If we use = 23 as a null hypothesis then the alternative hypothesis must show 23 . This is a two tailed test . That is we have to consider both < 23 and > 23 .

Case 2: If we use > 23 as a alternative hypothesis then we must write null hypothesis as H0 : 23 . This is one tail test .

orchestra answered 2 years ago

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