Business Statistics: A First Course (7th Edition)
7th Edition
ISBN: 9780321979018
Author: David M. Levine, Kathryn A. Szabat, David F. Stephan
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.15AC
A bank branch located in a commercial district of a city has the business objective of developing an improved process for serving customers during the noon-to-1: OOP.M. lunch period. The waiting time, in minutes, is defined as the time the customer enters the line to when he or she reaches the teller window. Data collected from a sample of 15 customers during this hour are stored in BANK1.
4.21 5.55 3.02 5.13 4.77 2.34 3.54 3.20
4.50 6.10 0.38 5.12 6.46 6.19 3.79
- Calculate the
mean andmedian . - Calculate the variance, Standard deviation,
range , coefficient of variation, and Z scores. Are there any outliers? Explain. - Are the data skewed? If so, how?
- As a customer walks into the branch office during the lunch hour, she asks the branch manager how long she can expect to wait. The branch manager replies, “Almost certainly less than five minutes”. On the basis of the results of (a) through (c), evaluate the accuracy of this statement.
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Chapter 3 Solutions
Business Statistics: A First Course (7th Edition)
Ch. 3 - The following set of data is from a sample of n =...Ch. 3 - The following set of data is from a sample of n =...Ch. 3 - The set of data is from a sample of n = 7: 12 7 4...Ch. 3 - The following set of data is from a sample of n =...Ch. 3 - Prob. 3.5ACCh. 3 - The operations manager of a plant that...Ch. 3 - Prob. 3.7ACCh. 3 - Prob. 3.8ACCh. 3 - The file Sedans contains the overall miles per...Ch. 3 - Prob. 3.10AC
Ch. 3 - Prob. 3.11ACCh. 3 - Prob. 3.12ACCh. 3 - Is there a difference in the variation of the...Ch. 3 - Prob. 3.14ACCh. 3 - A bank branch located in a commercial district of...Ch. 3 - Prob. 3.16ACCh. 3 - Using the three-year return percentage variable in...Ch. 3 - Prob. 3.18ACCh. 3 - Using the three-year return percentage variable in...Ch. 3 - Using the three-year return percentage variable in...Ch. 3 - Prob. 3.21LBCh. 3 - The following is a set of data from a sample of n...Ch. 3 - Prob. 3.23LBCh. 3 - Prob. 3.24LBCh. 3 - Prob. 3.25ACCh. 3 - The file MarketPenetration contains Facebook...Ch. 3 - Prob. 3.27ACCh. 3 - Prob. 3.28ACCh. 3 - Prob. 3.29ACCh. 3 - Prob. 3.30ACCh. 3 - Prob. 3.31LBCh. 3 - The following is a set of data for a population...Ch. 3 - Consider a population of 1,024 mutual funds that...Ch. 3 - Prob. 3.35ACCh. 3 - The file Energy contains the per capita energy...Ch. 3 - Prob. 3.37ACCh. 3 - The following is a set of data from a sample of n...Ch. 3 - Prob. 3.39ACCh. 3 - The file CEREALS lists the calories and sugar, in...Ch. 3 - Movie companies need to predict the gross receipts...Ch. 3 - Prob. 3.42ACCh. 3 - Prob. 3.43ACCh. 3 - Prob. 3.44CYUCh. 3 - Prob. 3.45CYUCh. 3 - What are the differences among the mean, median,...Ch. 3 - Prob. 3.47CYUCh. 3 - Prob. 3.48CYUCh. 3 - Prob. 3.49CYUCh. 3 - Prob. 3.50CYUCh. 3 - Prob. 3.51CYUCh. 3 - Prob. 3.52CYUCh. 3 - Prob. 3.53CYUCh. 3 - Prob. 3.54CYUCh. 3 - Prob. 3.55CYUCh. 3 - How do the covariance and the coefficient of...Ch. 3 - Prob. 3.57CRPCh. 3 - Prob. 3.58CRPCh. 3 - One of the major measures of the quality of...Ch. 3 - Prob. 3.60CRPCh. 3 - The manufacturing company in Problem 3.60 also...Ch. 3 - Prob. 3.62CRPCh. 3 - Prob. 3.63CRPCh. 3 - Prob. 3.64CRPCh. 3 - Prob. 3.66CRPCh. 3 - The file PropertyTaxes contains the property...Ch. 3 - 311 is Chicagos web and phone portal for...Ch. 3 - How much time do Americans living in or near...Ch. 3 - You are planning to study for your statistics...Ch. 3 - Prob. 3.74RWE
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