Assume the following resluts are found for the use of adults

Assume the following resluts are found for the use of adults who use social media:

Use social Networking sites?        Great Britain     Israel      Russia        United States

Yes                                                    344                 365             301                 500

No                                                       456                 235            399                 500

a. Conduct a hypothesis test to determine whether the proportions of adults using social media is equal for all four countries. Given a= 0.05 what is your conclusion? Use both Critical and P-value approaches.

b. What are the sample proportions for each of the four countries? which one has the largest proportions?

c. using a 0.05 level of significance, conduct multiple pairwise comparison tests amoung the four countries? What is your conclusion?

A1. State the null and alternative hypothesis?

A2. What is the value of the test statistic?

A3. What is the critical value?

A4. What is the p-value?

A5. What is your conclusion reguarding the null hypothesis?

Solution