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Combining the cost-per-serving data for high-fiber cereals rated very good and those rated good from the previous exercise gives the following data set:
- a. Calculate the
quartiles and theinterquartile range for this combined data set. (Hint: See Example 4.9.) - b. Calculate the interquartile range for just the cereals rated good. Is this value greater than, less than, or about equal to the interquartile range computed in Part (a)?
4.18 • Cost per serving (in cents) for six high-fiber cereals rated very good and for nine high-fiber cereals rated good by Consumer Reports are shown below. Write a few sentences describing how these two data sets differ with respect to center and variability. Use summary statistics to support your statements.
Cereals Rated Very Good
Cereals Rated Good
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Chapter 4 Solutions
Bundle: Introduction to Statistics and Data Analysis, 5th + WebAssign Printed Access Card: Peck/Olsen/Devore. 5th Edition, Single-Term
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