A researcher surveys 50 individuals in the North Ward of Thunder Bay, and 40 in the South Ward, and finds that 40% of the North Ward residents had visited the Port Arthur Waterfront in the last year, while only 30% of South Ward residents had. Is there enough evidence to conclude that the rates of use in the two wards differ? Use a two-tailed test with a = 0.10.
A researcher surveys 50 individuals in the North Ward of Thunder Bay, and 40 in the South Ward, and finds that 40% of the North Ward residents had visited the Port Arthur Waterfront in the last year, while only 30% of South Ward residents had. Is there enough evidence to conclude that the rates of use in the two wards differ? Use a two-tailed test with a = 0.10.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
Related questions
Question
(a) Write in words and symbols null and research hypotheses.
(b) Calculate the pooled values of p and q.
(c) Calculate the standard error for the difference between p1 and p2
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