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SPCec Homei portal x Topic Week 9 x Ve Hawkes Learni x l Hawkes Learnir x C o e Secure https certify r! save & End Certify Lesson: 8.1 Estimating Population Means (S.. MORGAN WILLIAMS 2/13 Question 3 of 13, Step 1 of 1 Correct The mean number of hours of part-time work per week for a sample of 124 teenagers is 24. e margin of error for the population mean with a 95% confidence interval is construct a 95% confidence interval for the mean number of hours of part-time work per week for all teenagers. Answer (How to Enter) Tables Keypad Hide Lower endpoint: Upper endpoint: Submit Answer A 539 AN 4/19/20

Explanation / Answer

mean = 24

margin of error = 1.7

hence

confidence interval is

(24-1.7 ,24+1.7)

=(22.3,25.7)

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