MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Concept explainers

2-Proportion Test
In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.
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The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30​, and the sample statistics include n=1126 subjects with 327 saying that they smoked a cigarette in the past week. Find the value of the test statistic.

The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics include n = 1126 subjects with 327 saying that they smoked a cigarette in the past week. Find the value of the test statistic. The test statistic is (Round to two decimal places as needed.)
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Transcribed Image Text:The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics include n = 1126 subjects with 327 saying that they smoked a cigarette in the past week. Find the value of the test statistic. The test statistic is (Round to two decimal places as needed.)
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