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# Some questions based on applied math and stats involving pdes

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d are linked to a higher risk of developing coronary heart diseases. A researcher is investigating two types of interventions (e.g. A, B) to reduce the cholesterol level. Study participants were randomized to receive either intervention A or B. Some subjects dropped from the study due to reasons not related to the interventions. In order to determine which intervention was more effective, the mean cholesterol concentrations were compared between the two groups at the end of the study. The total cholesterol levels for the patients undergoing the intervention A were: 240, 238, 245, 256, 289, 190, 189, 205, 200, 214, 237, 247, 254, 209, 211, 200 mg/dl. The total cholesterol levels for the patients undergoing the intervention B were: 213, 188, 199, 247, 248, 239, 256, 244, 206, 223, 241, 261, 226, and 231 mg/dl. Which intervention was more effective? Consider alpha=0.05. Intervention B was more effective. Intervention A was more effective. Impossible to tell based on the information provided. The two interventions were not statistically significant different.
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e variables. The first asks whether, during a 7 year period, respondents domestically sourced dogs *yes/no. The second asks if respondents imported dogs *yes/no within the 7 year period. When I cross tabulate the two variables, there were some respondents who imported and domestically sourced dogs. So I want to make sure I don't over count in Q1 below. Unfortunately, I didn't have one variable that asked if they ever domestically sourced or imported a dog. Q1: Now, I want to see if there is a difference (using logistic regression) in IMPORTING (only) a dog based on whether a respondent lives in an urban or rural household. How best to do this?
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hanging and finding the distance based on it. So in a way it all deals with motion along a straight plane.
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1.AU MAT 120 Systems of Linear Equations and Inequalities Discussion

mathematicsalgebra Physics