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A computer company randomly selects 100 computers from the production line to launch a new model, and finds that they have a standard deviation of 120 hours and an average runtime of 1800 hours. Find the 95% confidence interval for the average lifetime of the company's computers. O a) 1676.48-1923.52 O B) 1736.48-1923.52 OC) 2776.48-2823.52 O D) 1776.48-1823.52 O TO) 3776.48-3923.52

A computer company randomly selects 100 computers from the production line to launch a new model, and finds that they have a standard deviation of 120 hours and an average runtime of 1800 hours. Find the 95% confidence interval for the average lifetime of the company's computers. O a) 1676.48-1923.52 O B) 1736.48-1923.52 OC) 2776.48-2823.52 O D) 1776.48-1823.52 O TO) 3776.48-3923.52

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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A computer company randomly selects 100 computers from the production line to launch a new model, and finds that they have a standard deviation of 120 hours and an average runtime of 1800 hours. Find the 95% confidence interval for the average lifetime of the company's computers. 36 - a) 1676.48-1923.52 O B) 1736.48-1923.52 O C) 2776.48-2823.52 O D) 1776.48-1823.52 O TO) 3776.48-3923.52
Transcribed Image Text:A computer company randomly selects 100 computers from the production line to launch a new model, and finds that they have a standard deviation of 120 hours and an average runtime of 1800 hours. Find the 95% confidence interval for the average lifetime of the company's computers. 36 - a) 1676.48-1923.52 O B) 1736.48-1923.52 O C) 2776.48-2823.52 O D) 1776.48-1823.52 O TO) 3776.48-3923.52
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