A carnival game is designed so that approximately 10% of players will win a large prize. If there is evidence that the percentage differs significantly from this target, then adjustments will be made to the game. To investigate, a random sample of 100 players is selected from the large population of all players. Of these players, 19 win a large prize. The question of interest is whether the data provide convincing evidence that the true proportion of players who win this game differs from 0.10. The computer output gives the results of a z-test for one proportion. Test and CI for One Proportion Test of p = 0.1 vs p * 0.1 Sample X N Sample 1 19 100 Р 95% CI (0.113, 0.267) 0.19 What conclusion should be made at the a = 0.05 level? O Because the P-value < a= 0.05, there is convincing evidence that the true proportion of players who win this game differs from 0.10. Z-Value 3.00 P-value 0.0027

A carnival game is designed so that approximately 10% of players will win a large prize. If there is evidence that the percentage differs significantly from this target, then adjustments will be made to the game. To investigate, a random sample of 100 players is selected from the large population of all players. Of these players, 19 win a large prize. The question of interest is whether the data provide convincing evidence that the true proportion of players who win this game differs from 0.10. The computer output gives the results of a z-test for one proportion. Test and CI for One Proportion Test of p = 0.1 vs p * 0.1 Sample X N Sample 1 19 100 Р 95% CI (0.113, 0.267) 0.19 What conclusion should be made at the a = 0.05 level? O Because the P-value < a= 0.05, there is convincing evidence that the true proportion of players who win this game differs from 0.10. Z-Value 3.00 P-value 0.0027

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

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