Statistics
Statistics
4th Edition
ISBN: 9780393929720
Author: David Freedman, Robert Pisani, Roger Purves
Publisher: Norton, W. W. & Company, Inc.
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Chapter 2.5, Problem 9EA

a.

To determine

Explain whether screening save lives.

Identify the numbers in the table that prove the point.

b.

To determine

Explain the reason that the death rate from all other causes in the whole treatment group is about the same as the rate in control group.

c.

To determine

Identify the number in the table that confirm the association between breast cancer and income.

d.

To determine

Check whether the death rate among women who accepted screening is about half the death rate among women who refused.

Describe screening or other factor explains the difference in death rates.

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