As part of an effort to develop new battery technologies, constant-use life spans of twenty cell phone batteries were measured (below in hours). Use these values to address the following question. 15.7, 14.6, 15.6, 14.5, 15.2, 16.0, 15.0, 15.7, 16.2, 14.7, 15.3, 16.0, 14.4, 16.2, 16.2, 14.9, 14.8, 15.7, 15.3, 14.6 a. Do the data appear to be consistent with a normal distribution? b. What is the 95% Cl on the mean? c. What is the 95% Cl on the variance?

As part of an effort to develop new battery technologies, constant-use life spans of twenty cell phone batteries were measured (below in hours). Use these values to address the following question. 15.7, 14.6, 15.6, 14.5, 15.2, 16.0, 15.0, 15.7, 16.2, 14.7, 15.3, 16.0, 14.4, 16.2, 16.2, 14.9, 14.8, 15.7, 15.3, 14.6 a. Do the data appear to be consistent with a normal distribution? b. What is the 95% Cl on the mean? c. What is the 95% Cl on the variance?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 11PPS

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