1. Scenario B. A tech company has made a new app to help improve sleep hygiene. Sleep hygiene is the extent to which you have a good, healthy sleep routine--the goal of the app is to optimize the user's sleep schedule and set them up for sleep success by encouraging them to remove distracting things in their environment, minimizing light exposure prior to sleep, and helping them find their own personal best sleep routine. The tech company gives the app to a select group of college students living in the dorms on campus, and compares their sleep quality to their roommate's sleep quality, who did not get the app. Is this a directional or non-directional hypothesis?

2. Scenario B. A tech company has made a new app to help improve sleep hygiene. Sleep hygiene is the extent to which you have a good, healthy sleep routine--the goal of the app is to optimize the user's sleep schedule and set them up for sleep success by encouraging them to remove distracting things in their environment, minimizing light exposure prior to sleep, and helping them find their own personal best sleep routine. The tech company gives the app to a select group of college students living in the dorms on campus, and compares their sleep quality to their roommate's sleep quality, who did not get the app. What is the null hypothesis for this scenario?

3. Scenario B. A tech company has made a new app to help improve sleep hygiene. Sleep hygiene is the extent to which you have a good, healthy sleep routine--the goal of the app is to optimize the user's sleep schedule and set them up for sleep success by encouraging them to remove distracting things in their environment, minimizing light exposure prior to sleep, and helping them find their own personal best sleep routine. The tech company gives the app to a select group of college students living in the dorms on campus, and compares their sleep quality to their roommate's sleep quality, who did not get the app. What is the alternative hypothesis for this scenario?

4. Scenario B. A tech company has made a new app to help improve sleep hygiene. Sleep hygiene is the extent to which you have a good, healthy sleep routine--the goal of the app is to optimize the user's sleep schedule and set them up for sleep success by encouraging them to remove distracting things in their environment, minimizing light exposure prior to sleep, and helping them find their own personal best sleep routine. The tech company gives the app to a select group of college students living in the dorms on campus, and compares their sleep quality to their roommate's sleep quality, who did not get the app. Which of the below would be a type I error for this scenario? a) The researcher concludes that the app does not work to improve sleep quality, when in reality those who used the app and who did not had the same sleep quality. b) The researcher concludes that the app works to improve sleep quality, when in reality it does improve sleep quality. c) The researcher concludes that the app works to improve sleep quality, when in reality it has no impact on sleep quality. d) The researcher concludes that the app does not work to improve sleep quality, when in reality it does improve sleep quality.

5. 9. Scenario B. A tech company has made a new app to help improve sleep hygiene. Sleep hygiene is the extent to which you have a good, healthy sleep routine--the goal of the app is to optimize the user's sleep schedule and set them up for sleep success by encouraging them to remove distracting things in their environment, minimizing light exposure prior to sleep, and helping them find their own personal best sleep routine. The tech company gives the app to a select group of college students living in the dorms on campus, and compares their sleep quality to their roommate's sleep quality, who did not get the app Which of the below would be a type II error for this scenario? a) The researcher concludes that the app works to improve sleep quality, when in reality it does improve sleep quality. b) The researcher concludes that the app does not work to improve sleep quality, when in reality it does improve sleep quality. c) The researcher concludes that the app works to improve sleep quality, when in reality it has no impact on sleep quality.

d) The researcher concludes that the app does not work to improve sleep quality, when in reality those who used the app and who did not had the same sleep quality.