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(b) Find the sample standard deviation using the usual formula of Σ(x-x)2 n-1 S= 2 and compare it to your result from part (a). This is The sample standard deviation is part (a). (Simplify your answer. Round to one decimal place as needed.) the result from

(b) Find the sample standard deviation using the usual formula of Σ(x-x)2 n-1 S= 2 and compare it to your result from part (a). This is The sample standard deviation is part (a). (Simplify your answer. Round to one decimal place as needed.) the result from

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Data table 59280 15 19 18 14 18 15 19 Shoppers' Ages 17 22 Print 19 18 18 16 17 19 Done 17 14 17 14
Transcribed Image Text:Data table 59280 15 19 18 14 18 15 19 Shoppers' Ages 17 22 Print 19 18 18 16 17 19 Done 17 14 17 14
You used SS =(x-x)² when calculating variance and standard deviation. An alternative formula for the standard deviation that is sometimes convenient for hand calculations is shown below. You can find the sample variance by dividing the sum of squares by n-1, and the sample standard deviation by finding the square root of the sample variance. Complete parts (a) and (b) below. (Ex)² SSX = Ex² n Click the icon for a table of the ages (in years) of shoppers at a local store. (a) Use the shortcut formula to calculate the sample standard deviation. S = 2.2 (Simplify your answer. Round to one decimal place as needed.) S= ... (b) Find the sample standard deviation using the usual formula of Σ(x-x)2 V n-1 " and compare it to your result from part (a). The sample standard deviation is This is part (a). (Simplify your answer. Round to one decimal place as needed.) the result from
Transcribed Image Text:You used SS =(x-x)² when calculating variance and standard deviation. An alternative formula for the standard deviation that is sometimes convenient for hand calculations is shown below. You can find the sample variance by dividing the sum of squares by n-1, and the sample standard deviation by finding the square root of the sample variance. Complete parts (a) and (b) below. (Ex)² SSX = Ex² n Click the icon for a table of the ages (in years) of shoppers at a local store. (a) Use the shortcut formula to calculate the sample standard deviation. S = 2.2 (Simplify your answer. Round to one decimal place as needed.) S= ... (b) Find the sample standard deviation using the usual formula of Σ(x-x)2 V n-1 " and compare it to your result from part (a). The sample standard deviation is This is part (a). (Simplify your answer. Round to one decimal place as needed.) the result from
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