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Understanding Business
12th Edition
ISBN: 9781259929434
Author: William Nickels
Publisher: McGraw-Hill Education
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plz do on the paper and step by step i will 20 upvotes.

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=1508 subjects with 483 saying that they smoked a cigarette
in the past week. Find the value of the test statistic
The test statistic for a proportion is z
P-PO
Pox (1-Po)
n
Use the order of operation to evaluate the test statistic, z
0.32-0.30
0.30x(1-0.30)
1508
(Round to two decimal places as needed.)
Expert Solution
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