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In: Statistics and Probability

Management claims that the mean incomes for all senior-level assembly line workers in a large company...

Management claims that the mean incomes for all senior-level assembly line workers in a large company equals $500 per week. An employee decides to test this claim, believing that it is actually different than $500. For a random sample of nine employees, the incomes are:

430,450,450,440,460,420,430,450,440

(a) Conduct a significance test of whether the population mean income equals $500 per week.

(b) For which significance levels can you reject H0? (i) 0.10 (ii) 0.05 (iii) 0.01

(c) For which confidence levels would the confidence interval contain 500? (i) 0.90, (ii) 0.95, (iii) 0.99

(d) In the context of this study, what is a Type I error and a Type II error?

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Expert Solution

ANSWERIAM NOT SOLVING PART(d) DUE TO LACK OF TIME

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orchestra answered 2 years ago
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