D Question 15 0.25 pts Scenario D. A researcher is interested in examining whether the number of hours teenagers use social media is higher or lower after the pandemic than it was before the pandemic. Should we test this using a directional or non-directional hypothesis? Directional Non-Directional Question 16 0.25 pts Scenario D. A researcher is interested in examining whether the number of hours teenagers use social media is higher or lower after the pandemic than it was before the pandemic. What is the null hypothesis for this scenario? Ho Social media use will not change after the pandemic Ho Social media use will decrease after the pandemic O Ho Social media use will be the same or lower after the pandemic O He Social media use will change after the pandemic O Ho: Social media use will increase after the pandemic Question 17 0.25 pts Scenario D. A researcher is interested in examining whether the number of hours teenagers use social media is higher or lower after the pandemic than it was before the pandemic. What is the alternative hypothesis for this scenario? O H1: Social media use will increase after the pandemic, H1: Social media use will decrease after the pandemic. H1: Social media use will not change after the pandemic. H1: Social media use will change after the pandemic. Question 18 0.5 pts Scenario D. A researcher is interested in examining whether the number of hours teenagers use social media is higher or lower after the pandemic than it was before the pandemic. What is a type ! error for this scenario? The researcher concludes that social media use changes after the pandemic when in reality it did not change. The researcher concludes that social media use did not change after the pandemnic, when in reality it did change The researcher concludes that social media use changes after the pandemic when in reality it did change The researcher concludes that social media use did not change after the pandemic, when in reality it did not change Question 19 0.5 pts Scenario D. A researcher is interested in examining whether the number of hours teenagers use social media is higher or lower after the pandemic than it was before the pandemic. What is a type II error for this scenario? O The researcher condudes that social media use did not change after the pandemic when in reality it did not change O The researcher concludes that social media we changes after the pandemic when in really le did change The researcher concludes that social media use did not change after the pandemic, when in realley it did change The researcher concludes that social media use changes after the pandemic when in reality it did not change