Question: =+) How does the margin of error based on this pooled sample compare with the margins of error from the separate groups? Why? Exercises 329

=+) How does the margin of error based on this pooled sample compare with the margins of error from the separate groups? Why?

Exercises 329 M09_SHAR8696_03_SE_C09.indd 329 14/07/14 7:31 AM 330 CHAPTER 9 Sampling Distributions and Confidence Intervals for Proportions

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