Operations Management
Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
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Chapter 10, Problem 34P
Summary Introduction

To determine: The percentage of time spent by the workers in working.

Introduction: Time study is the basis that helps set the standard time; it would time a sample of the performance of the worker.

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A random work sample of operators taken over a 1,158-hour work month at Tele-Marketing, Inc., has produced the following results.On phone with customer 858 hoursIdle time 210 hoursPersonal time 90 hoursThe percentage of time spent working =
Please no written by hand solutions In a recent commercial, a weight-loss company featured testimonials touting their “miracle shake” nutritional supplement. Satisfied Customer Time (days) Weight loss (kg) Sarah, from Toronto 30 11 Zack, from New York 45 16 Eli, from Detroit 90 36 Yvette, from Montreal 10 4.5 Lynn, from San Diego 30 8.5 Kulwinder, from Vancouver 60 20 The commercial claims that the miracle shake will provide guaranteed weight loss. a) Use this data to determine the correlation between time on the diet and weight loss (either the Spearman's Rank Coefficient, or the PPMCC, but state which you are calculating. You are welcome to use a spreadsheet). b) Does the correlation imply that the miracle shakes cause weight loss? Identify any possible outliers.
​d) The average time a customer spends in the shop​ = ? enter your response here minutes ​(round your response to two decimal​ places).
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