In an obesity study, a researcher wishes to determine if age, average sleep duration, and depression...

In an obesity study, a researcher wishes to determine if age, average sleep duration, and depression score have any effect on a person’s weight. The researcher takes a random sample of 25 participants that have been diagnosed as obese and records their measurements. Using the data, create the regression output (not including the y-intercept) then answer the questions below. Note that all variables are quantitative. Let α = 0.05.

Write out the estimated regression line. To receive full credit, you must label all variables.

What is the adjusted coefficient of determination?

Weight	Age	Average Sleep Duration	Depression Score
210.5	25	5.4	18
196.1	36	6.3	8
233.4	33	7.9	15
210.9	41	8.1	10
221.7	29	6.8	14
199.1	27	7.5	9
245.6	37	7.6	21
267.2	31	6.9	25
181.9	29	6.9	6
294.6	40	8.4	32
256.3	36	8.1	28
211.7	22	8.6	12
202.4	46	7.8	7
194.4	32	7.2	6
211.3	41	8.2	11
186.5	26	5.8	3
195.9	28	6.9	8
201.2	37	7.1	10
267.8	30	7.5	27
288.4	27	6.8	31
234.2	39	7.5	20
290.1	45	8.3	33
195.2	23	5.4	7
182.3	26	7.3	4
210.6	35	8.1	11

Solutions

Expert Solution

the regression equation is weight = - 43.44+0.2616(weight)

R2 adjusted=0.9486

orchestra answered 1 year ago

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