Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.   Subject 0 weeks 2 weeks 4 weeks M

Researchers investigate how the presence of cell phones influence the quality of human interaction.  Subjects are randomly selected from a population and divided into an experimental group that is asked to leave their phones in the front of the room and a control group that are not asked to leave their cell phones at the front of the room.  Subjects are left alone for 10 minutes and then asked to take a survey designed to measure quality of interactions they had with others in the experiment.  What statistical test is appropriate?

A food-frequency questionnaire is used to measure dietary intake. The respondent specifies the number of servings of various food items they consumed over the previous week. The dietary cholesterol is then quantified for each respondent. The researchers were interested in assessing if there was an association between dietary cholesterol intake and high blood pressure. In a large sample of individuals who had completed the questionnaire, 250 persons with a high dietary cholesterol intake (greater than 300 mg /day) were selected and 250 persons with a low dietary cholesterol intake (less than 300 mg/day) were selected. The 500 selected participants had their medical history taken and were classified as having normal or high blood pressure. The data are given here. Dietary Cholesterol Blood Pressure Total High Low High 159 91 250 Low 78 172 250 Total 237 263 500 Test 2: two-tailed test for comparing two independent proportions Clearly state…

Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.   Subject 0 weeks 2 weeks 4 weeks Mparticipant 1 28 45 69 47.33 2 32 43 72 49 3 30 47 65 47.33 4 29 45 75 49.67 5 31 44 70 48.33 M 30 44.8 70.2 GM = 48.33   What is the SSwithin (i.e., SSerror)? Round to 2 decimal places. Hint: Σ(X - GM)2 = 4207.33, Σ(M- GM)2 = 4133.73, Σ(Mparticipant - GM)2 = 12.67

Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.   Subject 0 weeks 2 weeks 4 weeks Mparticipant 1 28 45 69 47.33 2 32 43 72 49 3 30 47 65 47.33 4 29 45 75 49.67 5 31 44 70 48.33 M 30 44.8 70.2 GM = 48.33   What is F critical? (Round to 2 decimal places.)

Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.   Subject 0 weeks 2 weeks 4 weeks Mparticipant 1 28 45 69 47.33 2 32 43 72 49 3 30 47 65 47.33 4 29 45 75 49.67 5 31 44 70 48.33 M 30 44.8 70.2 GM = 48.33   What is MSwithin? Round to 2 decimal places. Hint: Σ(X - GM) 2 = 4207.33, Σ(M- GM) 2 = 4133.73, Σ(Mparticipant - GM) 2 = 12.67

Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.   Subject 0 weeks 2 weeks 4 weeks Mparticipant 1 28 45 69 47.33 2 32 43 72 49 3 30 47 65 47.33 4 29 45 75 49.67 5 31 44 70 48.33 M 30 44.8 70.2 GM = 48.33   What is the MSsubjects? Round to 2 decimal places. Hint: Σ(X - GM) 2 = 4207.33, Σ(M- GM) 2 = 4133.73, Σ(Mparticipant - GM) 2 = 12.67

Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.   Subject 0 weeks 2 weeks 4 weeks Mparticipant 1 28 45 69 47.33 2 32 43 72 49 3 30 47 65 47.33 4 29 45 75 49.67 5 31 44 70 48.33 M 30 44.8 70.2 GM = 48.33   What is Tukey HSD for the 2 week and 4 week comparison? Round to 2 decimal places.

Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.   Subject 0 weeks 2 weeks 4 weeks Mparticipant 1 28 45 69 47.33 2 32 43 72 49 3 30 47 65 47.33 4 29 45 75 49.67 5 31 44 70 48.33 M 30 44.8 70.2 GM = 48.33   What is Tukey HSD for the 0 week and 2 week comparison? Round to 2 decimal places.

Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.   Subject 0 weeks 2 weeks 4 weeks Mparticipant 1 28 45 69 47.33 2 32 43 72 49 3 30 47 65 47.33 4 29 45 75 49.67 5 31 44 70 48.33 M 30 44.8 70.2 GM = 48.33   What is the MS between? Round to 2 decimal places.   Answer:   Researchers were interested in assessing the effects of a new treatment on seasonal affective disorder. Mood was assessed in all participants at three time-points: (1) pre-treatment (0 weeks), (2) after 2 weeks of treatment, and (3) after 4 weeks of treatment.   Subject 0 weeks 2 weeks 4 weeks Mparticipant 1 28 45 69 47.33 2 32 43 72 49 3 30 47 65 47.33 4 29 45 75 49.67 5 31 44 70 48.33 M 30 44.8 70.2 GM = 48.33   What is the MS subjects? Round to 2 decimal places.…