Question

Because colse tend to replace healthier beverages and colas conlein caffeine and phosphoric acid, reeearchers wanted to know whether cola coneurplion is associated with lower bone mineral density in women. The accompanying dala lists the typical number of cons of cole consumed in a week and the femoral neck bona mineral deneity for a sample or 15 women. Complete perts ſay through (1) below. Click the car to view the women's data B. For any (a) Find the least squares regression line treating cola consumption per week as the explanatory variable 9 = - .028 + 0.00) (Round to three decimal places as needed.) (b) Interpret the slope. Select the curreal choice below and, if necessary, fill in the answer box lo complele your choice. O A. For a bare density of a g/un", the number of colas crisurned is predicted to be 7. (Round to three decimal places as needed.) y cola consumed per wock, the hone density decreases by _g/cm, an average. (Round lolliree decimal places as reeded.) OC. For every unit increase in bon density, the number of colas dnarnases by on avergo (Ruurd lolliree decirl places as reeded.) OD. For O colas consumed in a weak, the bone dersity is predicted to be gicm (Round to the acimal places as rended.) O E. It is not appropriate to Interpret the slope. (c) Interpret they intercepl. Selec: the correct choice below and, if necessary, fill in the answer box lo complete your choice. O A. For a bare dersity of age, the number of colas consumed is predicted to be in (Round to three decimal place as reeded.) OB. For colas consumed in a weak, the bone dersity's pradicted to be gicm (Round to three decimal placus as reeded.) OC. For every unit increase in bonn density, the number of colas decreases by on averago (Raund to three decimal places as reeded.) D. For every cola consumed per week, the bone density decreases by 80/arm, on everage. (Round to three decimal places as needed.) O E. It is not appropriate to interpret the y-intercept

Answer 1

(A) We have the equation:

Y= -0.026 X+0.900 (its not clearly visible but the procedure will be the same).

Here slope=-0.026

intercept=0.900

(B)

INTERPRETATION:

option(B) for every cola consumed per week,the bone density decreases by 0.026 g/cm^3 on average.

(C)

option(B) for 0 cola consumed in a week,the bone density is predicted to be 0.900 gm/cm^3

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