Social media is becoming more and more popular around the world. Suppose a website provides estimates of the number of socialmedia users in various countries. Assume that the results for surveys in the United Kingdom, China, Russia, and the United Statesare as follows.Use SocialMediaYesNoUnitedKingdom480320CountryChina Russia235265343Need Help?357O Ho: All population proportions are not equal.H₂: P₁ = P₂ = P3 = P4Read ItOHO: Not all population proportions are equal.Ha: P₁ = P₂ = P3 = P4(a) Conduct a hypothesis test to determine whether the proportion of adults using social media is equal for all four countries.State the null and alternative hypotheses.O Ho: P₁ = P₂ = P3 = P4H₂: Not all population proportions are equal.UnitedStates620380Ho: P₁ = P₂ = P3 = P4H: All population proportions are not equal.Find the value of the test statistic. (Round your answer to two decimal places.)What is the p-value? (Round your answer to four decimal places.)p-value =Using a 0.05 level of significance, what is your conclusion?O Do not reject Ho. We cannot conclude that not all population proportions are equal.Reject H. We cannot conclude that not all population proportions are equal.O Do not reject Ho. We conclude that not all population proportions are equal.O Reject Ho. We conclude that not all population proportions are equal.(b) What are the sample proportions for each of the four countries?United KingdomChinaRussiaUnited StatesWhich country has the largest proportion of adults using social media?O United KingdomChinaRussiaUnited States(c) Using a 0.05 level of significance, conduct multiple pairwise comparison tests among the four countries. Based on yourresults, which of the following comparisons show a significant difference in the proportion of adults that use social media?(Select all that apply.)United Kindom vs. ChinaO United Kingdom vs. United StatesRussia vs. United StatesO China vs. United StatesChina vs. RussiaUnited Kingdom vs. Russia

The given data is related to the usage of social networking sites in four countries.(a)State the…

Social media is becoming more and more popular around the world. Suppose a website provides estimates of the number of social media users in various countries. Assume that the results for surveys in the United Kingdom, China, Russia, and the United States are as follows. Use Social Media Yes No United Kingdom 480 320 Country China 235 265 Russia United States Russia 343 357 O Ho: All population proportions are not equal. Ha: P₁ = P₂ = P3 P4 O Ho: Not all population proportions are equal. Ha: P₁ P₂ = P3 P4 (a) Conduct a hypothesis test to determine whether the proportion of adults using social media is equal for all four countries. State the null and alternative hypotheses. Ho: P₁ = P₂= P3 = P4 H: Not all population proportions are equal. a United States 620 380 O Ho: P₁ = P₂ = P3 = P4 H: All population proportions are not equal. Find the value of the test statistic. (Round your answer to two decimal places.) What is the p-value? (Round your answer to four decimal places.) p-value= United Kingdom vs. United States Russia vs. United States China vs. United States China vs. Russia United Kingdom vs. Russia Using a 0.05 level of significance, what is your conclusion? Do not reject Ho. We cannot conclude that not all population proportions are equal. Reject Ho. We cannot conclude that not all population proportions are equal. Do not reject Ho. We conclude that not all population proportions are equal. O Reject Ho. We conclude that not all population proportions are equal. (b) What are the sample proportions for each of the four countries? United Kingdom China Russia United States Which country has the largest proportion of adults using social media? O United Kingdom China (c) Using a 0.05 level of significance, conduct multiple pairwise comparison tests among the four countries. Based on your results, which of the following comparisons show a significant difference in the proportion of adults that use social media? (Select all that apply.) United Kindom vs. China

Social media is becoming more and more popular around the world. Suppose a website provides estimates of the number of social media users in various countries. Assume that the results for surveys in the United Kingdom, China, Russia, and the United States are as follows. Use Social Media Yes No United Kingdom 480 320 Country China 235 265 Russia United States Russia 343 357 O Ho: All population proportions are not equal. Ha: P₁ = P₂ = P3 P4 O Ho: Not all population proportions are equal. Ha: P₁ P₂ = P3 P4 (a) Conduct a hypothesis test to determine whether the proportion of adults using social media is equal for all four countries. State the null and alternative hypotheses. Ho: P₁ = P₂= P3 = P4 H: Not all population proportions are equal. a United States 620 380 O Ho: P₁ = P₂ = P3 = P4 H: All population proportions are not equal. Find the value of the test statistic. (Round your answer to two decimal places.) What is the p-value? (Round your answer to four decimal places.) p-value= United Kingdom vs. United States Russia vs. United States China vs. United States China vs. Russia United Kingdom vs. Russia Using a 0.05 level of significance, what is your conclusion? Do not reject Ho. We cannot conclude that not all population proportions are equal. Reject Ho. We cannot conclude that not all population proportions are equal. Do not reject Ho. We conclude that not all population proportions are equal. O Reject Ho. We conclude that not all population proportions are equal. (b) What are the sample proportions for each of the four countries? United Kingdom China Russia United States Which country has the largest proportion of adults using social media? O United Kingdom China (c) Using a 0.05 level of significance, conduct multiple pairwise comparison tests among the four countries. Based on your results, which of the following comparisons show a significant difference in the proportion of adults that use social media? (Select all that apply.) United Kindom vs. China

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.2: Representing Data

Problem 22PFA

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