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The marketing team at an internet music site wants a better understanding of who their customers are. They send out a survey to 25 customers (and use an incentive of $50 worth of downloads to guarantee a high response rate) asking for demographic information. One of the variables is the customer's age. For the 25 customers, the ages are shown to the right. Complete parts a) through d). a) Find the quartiles using technology. Q1 = and Q3 = b) Find the quartiles using the Tukey method. 1-0 and Q3= c) Find the IQR using the quartiles from part b. IQR= Q1 = d) Find the standard deviation. 20 32 35 29 32 31 30 13 29 12 38 22 44 47 26 26 23 31 35 33 36 43 44 44 48

The marketing team at an internet music site wants a better understanding of who their customers are. They send out a survey to 25 customers (and use an incentive of $50 worth of downloads to guarantee a high response rate) asking for demographic information. One of the variables is the customer's age. For the 25 customers, the ages are shown to the right. Complete parts a) through d). a) Find the quartiles using technology. Q1 = and Q3 = b) Find the quartiles using the Tukey method. 1-0 and Q3= c) Find the IQR using the quartiles from part b. IQR= Q1 = d) Find the standard deviation. 20 32 35 29 32 31 30 13 29 12 38 22 44 47 26 26 23 31 35 33 36 43 44 44 48

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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 14PPS
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The marketing team at an internet music site wants a better understanding of who their customers are. They send out a survey to 25 customers (and use an incentive of $50 worth of downloads to guarantee a high response rate) asking for demographic information. One of the variables is the customer's age. For the 25 customers, the ages are shown to the right. Complete parts a) through d). a) Find the quartiles using technology. Q1 = and Q3 = b) Find the quartiles using the Tukey method. Q1 = 0 and Q3 = c) Find the IQR using the quartiles from part b. IQR= d) Find the standard deviation. The standard deviation is (Round to three decimal places as needed.) 20|32|35|29|32 31 30 13 29 12 38 22 44 47 26 26 23 31 35 33 36 43 44 44 48
Transcribed Image Text:The marketing team at an internet music site wants a better understanding of who their customers are. They send out a survey to 25 customers (and use an incentive of $50 worth of downloads to guarantee a high response rate) asking for demographic information. One of the variables is the customer's age. For the 25 customers, the ages are shown to the right. Complete parts a) through d). a) Find the quartiles using technology. Q1 = and Q3 = b) Find the quartiles using the Tukey method. Q1 = 0 and Q3 = c) Find the IQR using the quartiles from part b. IQR= d) Find the standard deviation. The standard deviation is (Round to three decimal places as needed.) 20|32|35|29|32 31 30 13 29 12 38 22 44 47 26 26 23 31 35 33 36 43 44 44 48
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