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In Exercises, find the range, variance, and | Ch 3.3 - 14BSC

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 14BSC Chapter 3.3

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 14BSC

In Exercises, find the range, variance, and standard deviation for the given samph data. Include appropriate units (such as “minutes”) in your results. (The same data were used in Section 3-2 where we found measures of center. Here we find measures of variation.) Then answer the given questions.

Mercury in Sushi Listed below are the amounts of mercury (in parts per million, or ppm) found in tuna sushi sampled at different stores in New York City. The study was sponsored by the New York Times, and the stores (in order) are D’Agostino, Eli’s Manhattan, Fairway, Food Emporium, Gourmet Garage, Grace’s Marketplace, and Whole Foods. What would be the values of the measures of variation if the tuna sushi contained no mercury?

Step-by-Step Solution:

Answer

City

Tuna sushi sampled

(x-)

D’Agostino

0.56

0.025281

Eli’s Manhattan

0.75

0.000961

Fairway

0.1

0.383161

Food Emporium

0.95

0.053361

Gourmet Garage

1.25

0.281961

Grace’s Marketplace

0.54

0.032041

Whole Foods

0.88

0.025921

Total

5.03

0.802687

Step 1 of 3</p>

Range=Largest value-Smallest value              

          =                                     

           =1.15

Step 2 of 3</p>

 =

   =

     =0.719

Variance=

         =

              =0.115

Step 3 of 3

Chapter 3.3, Problem 14BSC is Solved
Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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In Exercises, find the range, variance, and | Ch 3.3 - 14BSC

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