Jake keeps a log of the distance he covers, in miles, on each of his daily running workouts. Over the past twelve months, he has recorded a large number of workouts. Jake randomly selected 10 workouts from his log and found a mean distance of 4.81 miles with a standard deviation of 2.05 miles. Assuming all conditions for inference are met, which of the following gives a 90% confidence interval to estimate the mean number of miles he ran in the past twelve months? (A) 4.81 ± 1.645(0.648) (B) 4.81 ± 1.81(0.648) (C) 4.81 ± 1.81(2.05) (D) 4.81 1.83(0.648) ± (E) 4.81 ± 1.83(2.05)
Jake keeps a log of the distance he covers, in miles, on each of his daily running workouts. Over the past twelve months, he has recorded a large number of workouts. Jake randomly selected 10 workouts from his log and found a mean distance of 4.81 miles with a standard deviation of 2.05 miles. Assuming all conditions for inference are met, which of the following gives a 90% confidence interval to estimate the mean number of miles he ran in the past twelve months? (A) 4.81 ± 1.645(0.648) (B) 4.81 ± 1.81(0.648) (C) 4.81 ± 1.81(2.05) (D) 4.81 1.83(0.648) ± (E) 4.81 ± 1.83(2.05)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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