You want to compare the average working time of customer service from two companies. 9 representatives were randomly selected from a insurance company and 20 representatives were randomly selected from an airline company and their working time (in hours) in the past week were recorded. what test would you use? Two-proportions z-test Two-sample t-test One-sample t-test Paired t-test

You want to compare the average working time of customer service from two companies. 9 representatives were randomly selected from a insurance company and 20 representatives were randomly selected from an airline company and their working time (in hours) in the past week were recorded. what test would you use? Two-proportions z-test Two-sample t-test One-sample t-test Paired t-test

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 7CR

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