Past experience indicates that the variance in the time it takes for a "fast lube" operation to actually complete the lube and oil change for customers is 9.00 minutes. The manager wishes to estimate the mean time with 99% confidence and a margin of error of + 0.50 minutes. Given this, what must the sample size be? (Hint: Convert Variance to Standard Deviation) A) 239 B) 366 C) 500 D) 414
Past experience indicates that the variance in the time it takes for a "fast lube" operation to actually complete the lube and oil change for customers is 9.00 minutes. The manager wishes to estimate the mean time with 99% confidence and a margin of error of + 0.50 minutes. Given this, what must the sample size be? (Hint: Convert Variance to Standard Deviation) A) 239 B) 366 C) 500 D) 414
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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