For the multivariate linear regression of by Dr. Janet Forrester

Question 7 / 7: For the multivariate linear regression of the outcome of weight gain (lbs) on the

exposure of cupcake consumption (continuous), we find a beta, or regression coefficient

of 0.76, with a 95% confidence interval of (0.46, 1.06). Which one of the following is a true statement?

A For each 1?-unit increase in average cupcake consumption, we expect, on average, an increase
in weight of between 0.46 and 1.06 lbs. The best estimate is 0.76 lbs.

B For each 1?-unit increase in average cupcake consumption, we expect an odds ratio of weight
gain of between 0.46 and 1.06. The best estimate is 0.76.

C For each 1?-unit increase in weight gain, we expect, on average, an increase in cupcake consumption
of between 0.46 and 1.06. The best estimate is 0.76 cupcakes.

D For each 1?-unit increase in weight gain, we expect an odds ratio of cupcake consumption of
between 0.46 and 1.06. The best estimate is 0.76 cupcakes.

E The p?-value is above 0.05.

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Epidemiology Correlation & Regression

Author:

Dr.Janet ForresterProfessor

Tufts University School of Medicine

USA

Access: Public Instant Grading

Attribution: Janet, E.A. Forrester, Kwan Ho Kenneth Chui, Steven Cohen, Michael D. Kneeland, Alice Tang, David Tybor. Epidemiology and Biostatistics 2010. (Tufts University OpenCourseWare), http://ocw.tufts.edu/Course/65/ (Accessed 3 May, 2014). License: Creative Commons BY-NC-SA

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