Lab #19-Two Proportion Test and Confidence Intervals Problem 1: Great Britain has a great literary tradition that spans centuries. One might assume, then, that Britons read more than citizens of other...


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Lab #19-Two Proportion Test and Confidence Intervals<br>Problem 1:<br>Great Britain has a great literary tradition that spans centuries. One might assume, then, that<br>Britons read more than citizens of other countries. Some Canadians, however, feel that a higher<br>percentage of Canadians than Britons read. A recent Gallup Poll reported that 86% of 1004<br>randomly sampled Canadians read at least one book in the past year, compared to 81% of 1009<br>randomly sampled Britons. Do these results confirm a higher reading rate in Canada?<br>1. Test an appropriate hypothesis and state your conclusions.<br>2.<br>Find a 99% confidence interval for the difference in the proportion of Britons and Canadians<br>who read at least one book in the last year. Interpret your interval.<br>

Extracted text: Lab #19-Two Proportion Test and Confidence Intervals Problem 1: Great Britain has a great literary tradition that spans centuries. One might assume, then, that Britons read more than citizens of other countries. Some Canadians, however, feel that a higher percentage of Canadians than Britons read. A recent Gallup Poll reported that 86% of 1004 randomly sampled Canadians read at least one book in the past year, compared to 81% of 1009 randomly sampled Britons. Do these results confirm a higher reading rate in Canada? 1. Test an appropriate hypothesis and state your conclusions. 2. Find a 99% confidence interval for the difference in the proportion of Britons and Canadians who read at least one book in the last year. Interpret your interval.

Jun 01, 2022
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