Math 302 Week 6 Knowledge Check Homework

A researcher is testing reaction times between the dominant and non-dominant hand. They randomly start with each hand for 20 subjects and their reaction times in milliseconds are recorded. Test to see if the reaction time is faster for the dominant hand using a 5% level of significance. The hypotheses are:H0 : D = 0H1 : D > 0Non-DominantDominantWhat is the correct decision?Accept H1Do not reject H0Reject H1Reject H0Accept H0A physician wants to see if there was a difference in the average smokers' daily cigarette consumption after wearing a nicotine patch. The physician set up a study to track daily smoking consumption. In the study, the patients were given a placebo patch that did not contain nicotine for 4 weeks, then a nicotine patch for the following 4 weeks. Test to see if there was a difference in the average smokers daily cigarette consumption using = 0.01. The hypotheses are:H0 : D = 0H1 : D 0PlaceboNicotineWhat is the correct decision?Reject H0Accept H1Reject H1Accept H0Do not reject H0A researcher took a random sample of 200 new mothers in the United States (Group 1) and found that 16% of them experienced some form of postpartum depression. Another random sample of 200