Data : https://docs.google.com/spreadsheets/d/15Ihq0Ncp5ZixMI4PcZ1nqj1xN0qlUTELCVnGsIhpL-4/edit?usp=sharing

1. Use a t test assuming unequal variance to answer the following question: Is there a statistically significant ( alpha=.05) difference in the number of platforms used (variable: Platforms Used) by age group (variable: Young Adult)?

Select one:

a.We can reject the null; therefore, there does not appear to be a statistically significant difference in number of platforms used by age group.

b.We can't reject the null; therefore, there does appear to be a statistically significant difference in number of platforms used by age group.

c.We can reject the null; therefore, there appears to be a statistically significant difference in number of platforms used by age group.

2. You would also like to look at whether or not young adults are more likely to use specific social media platforms. In order to this, you utilize a two sample hypothesis test of proportions. What statistic will you create?

Select one:

a. z test statistic

b. t test statistic

3 Utilize a two sample hypothesis test of proportions to determine whether or not older adults (variable: Young Adult=0) are less likely to use SnapChat than young adults (variable: Young Adult=1). What is the value of the appropriate t or z statistic?

4. Complete hypothesis test from the previous question (at 5% significance). What is the most appropriate conclusion from your hypothesis test?

Select one:

a.We reject the null; therefore older adults have a higher probability of using SnapChat.

b. We reject the null; therefore, older adults have a lower probability of using SnapChat.

c. We can't reject the null; therefore, younger adults have a lower probability of using SnapChat.

d. We can't reject the null; therefore, older adults have a higher probability of using SnapChat.