19. Packaging Hamburger Meat The weights (in pounds) of 27 packages of ground beef in a supermarket...

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19. Packaging Hamburger Meat The weights

(in pounds) of 27 packages of ground beef in a supermarket meat display are as follows:

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a. Draw a stem and leaf plot or a relative frequency histogram to display the weights. Is the distribution relatively mound-shaped?

b. Find the mean and the standard deviation of the data set.

c. Find the percentage of measurements in the intervals x 6s, x 62s, and x 63s.

d. How do the percentages in part c compare with those given by the Empirical Rule? Explain.

e. How many of the packages weigh exactly 1 pound?
Can you think of any reason for this?

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Related Book For  book-img-for-question

Introduction To Probability And Statistics

ISBN: 9780357114469

15th Edition

Authors: William Mendenhall Iii , Robert Beaver , Barbara Beaver

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