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.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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please do B)

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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