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Category > Math Posted 14 Dec 2017 My Price 6.00

The director of admissions is concerned about the high cost of textbooks for the students each semester.

The director of admissions is concerned about the high cost of textbooks for the students each semester. A sample of 25 students enrolled in the university indicates that x(bar) = $315.40 and s = $43.20.

 

1.Using the .10 level of significance, what are the boundaries of the confidence interval?

 

2.Using the .10 level of significance, is there evidence that the population mean is above $300? (Should be yes or no with reason why.)

 

Thank you!!

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Martinakom
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Status NEW Posted 14 Dec 2017 01:12 PM My Price 6.00

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