Last year, television station WXYZ's share of the 11 P.M. news audience was approximately equal to, but no greater than, 25 percent. The station's management believes that the current audience share is higher than last year's 25 percent share. In an attempt to substantiate this belief, the station surveyed a random sample of 400 11 P.M. news viewers and found that 146 watched WXYZ. A. Use the critical value and the p-value approaches to test the hypotheses of the station's claim that the current audience share for WXYZ is higher than last year's 25 percent share at the 0.1, 0.05, 0.01 and 0.001 levels of significance. B. Based on your results in part a, how much evidence is there that the current audience share is higher than last year's 25 percent share? C. Do you think that the result of the station's survey has practical importance? Why or why not?
Last year, television station WXYZ's share of the 11 P.M. news audience was approximately equal to, but no greater than, 25 percent. The station's management believes that the current audience share is higher than last year's 25 percent share. In an attempt to substantiate this belief, the station surveyed a random sample of 400 11 P.M. news viewers and found that 146 watched WXYZ. A. Use the critical value and the p-value approaches to test the hypotheses of the station's claim that the current audience share for WXYZ is higher than last year's 25 percent share at the 0.1, 0.05, 0.01 and 0.001 levels of significance. B. Based on your results in part a, how much evidence is there that the current audience share is higher than last year's 25 percent share? C. Do you think that the result of the station's survey has practical importance? Why or why not?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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I managed to figure out most of it, but I have been presented with a few questions that I could not figure out. First, I am having issues deciphering the P^ value. Second , I am having an issue determining the sample portion? and I need assistance. The number that I came up with is not the correct number.
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