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A random sample of small-business managers was given a leadership style questionnaire. The results were scaled...

A random sample of small-business managers was given a leadership style questionnaire. The results were scaled so that each manager received a score for initiative. Suppose the following data are a random sample of these scores.

36 42 42 39 38 31 42
36 35 45 30 33 35 44
36 36 39 33 39 42 41
33 35 36 41 33 36 38
42 42 44 35 36 33 38
32 30 36 42


Assuming σ is 3.891, use these data to construct a 90% confidence interval to estimate the average score on initiative for all small-business managers.


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