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A report provided the following information on the sex of smartphone users for representative samples of young people ages 15 to 24 in several different countries. Percent Female Percent Male United States Spain Italy India Italy United States 530 Spain Female India 190 185 180 53% (a) Suppose the sample sizes were 1,000 for the United States and for India and 500 for Spain and Italy. Complete the following two-way table by entering the observed counts. 38% 37% ✓ 18% ✓ ✓ ✓ Male 470 310 315 47% ✓ 820 62% 63% 82% ✓ ✓ ✓ ✓ (b) Carry out a hypothesis test to determine if there is convincing evidence that the sex proportions are not the same for all four countries. Use a significance level of 0.05. Calculate the test statistic. (Round your answer to two decimal places.) z2 = Use technology or SALT to calculate the P-value. (Round your answer to four decimal places.) P-value = 0 What can you conclude? O Fail to reject Ho. There is not enough evidence to conclude that the gender proportions are not the same for the four countries. Reject Ho. There is enough evidence to conclude that the gender proportions are not the same for the four countries. O Reject Ho. There is not enough evidence to conclude that the gender proportions are not the same for the four countries. O Fail to reject Ho. There is enough evidence to conclude that the gender proportions are not the same for the four countries.

A report provided the following information on the sex of smartphone users for representative samples of young people ages 15 to 24 in several different countries. Percent Female Percent Male United States Spain Italy India Italy United States 530 Spain Female India 190 185 180 53% (a) Suppose the sample sizes were 1,000 for the United States and for India and 500 for Spain and Italy. Complete the following two-way table by entering the observed counts. 38% 37% ✓ 18% ✓ ✓ ✓ Male 470 310 315 47% ✓ 820 62% 63% 82% ✓ ✓ ✓ ✓ (b) Carry out a hypothesis test to determine if there is convincing evidence that the sex proportions are not the same for all four countries. Use a significance level of 0.05. Calculate the test statistic. (Round your answer to two decimal places.) z2 = Use technology or SALT to calculate the P-value. (Round your answer to four decimal places.) P-value = 0 What can you conclude? O Fail to reject Ho. There is not enough evidence to conclude that the gender proportions are not the same for the four countries. Reject Ho. There is enough evidence to conclude that the gender proportions are not the same for the four countries. O Reject Ho. There is not enough evidence to conclude that the gender proportions are not the same for the four countries. O Fail to reject Ho. There is enough evidence to conclude that the gender proportions are not the same for the four countries.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
ChapterCSR: Contents Of Student Resources
Section: Chapter Questions
Problem 11.1EP
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A report provided the following information on the sex of smartphone users for representative samples of young people ages 15 to 24 in several different countries. Italy United States Spain India Italy United States Spain India = Female Need Help? (a) Suppose the sample sizes were 1,000 for the United States and for India and 500 for Spain and Italy. Complete the following two-way table by entering the observed counts. Submit Answer 530 190 Read It Percent Female 185 8. [4/4 Points] DETAILS 180 53% 38% 37% 18% Male 470 310 Watch It 315 Percent Male 820 (b) Carry out a hypothesis test to determine if there is convincing evidence that the sex proportions are not the same for all four countries. Use a significance level of 0.05. Calculate the test statistic. (Round your answer to two decimal places.) x² 47% Use technology or SALT to calculate the P-value. (Round your answer to four decimal places.) P-value = 0 62% What can you conclude? Fail to reject H 0* There is not enough evidence to conclude that the gender proportions are not the same for the four countries. ● Reject Ho. There is enough evidence to conclude that the gender proportions are not the same for the four countries. Reject Ho. There is not enough evidence to conclude that the gender proportions are not the same for the four countries. Fail to reject Ho. There is enough evidence to conclude that the gender proportions are not the same for the four countries. 63% 82% PREVIOUS ANSWERS PODSTAT6 12.2.017.MI.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER
Transcribed Image Text:A report provided the following information on the sex of smartphone users for representative samples of young people ages 15 to 24 in several different countries. Italy United States Spain India Italy United States Spain India = Female Need Help? (a) Suppose the sample sizes were 1,000 for the United States and for India and 500 for Spain and Italy. Complete the following two-way table by entering the observed counts. Submit Answer 530 190 Read It Percent Female 185 8. [4/4 Points] DETAILS 180 53% 38% 37% 18% Male 470 310 Watch It 315 Percent Male 820 (b) Carry out a hypothesis test to determine if there is convincing evidence that the sex proportions are not the same for all four countries. Use a significance level of 0.05. Calculate the test statistic. (Round your answer to two decimal places.) x² 47% Use technology or SALT to calculate the P-value. (Round your answer to four decimal places.) P-value = 0 62% What can you conclude? Fail to reject H 0* There is not enough evidence to conclude that the gender proportions are not the same for the four countries. ● Reject Ho. There is enough evidence to conclude that the gender proportions are not the same for the four countries. Reject Ho. There is not enough evidence to conclude that the gender proportions are not the same for the four countries. Fail to reject Ho. There is enough evidence to conclude that the gender proportions are not the same for the four countries. 63% 82% PREVIOUS ANSWERS PODSTAT6 12.2.017.MI.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER
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