A random sample of patients who attended a clinic was selected. The age of the p

Question

A random sample of patients who attended a clinic was selected. The age of the patient (years) and the number of days since the last visit to the clinic were collected, and the relationship between the variables was observed to be linear, strong, and negative. The regression equation for predicting number of days since the last visit from the age of the patient is: Predicted y = 600.081 – 8.694x.   What does the slope of this regression line tell us?

Question 7 options:

The correlation between the age of patient and days since last visit.

The change in days since the last visit for each year older a patient is, on average.

The change in the age of the patient for each extra day since the last visit.

The average days since last visit for all of the patients.

a)

The correlation between the age of patient and days since last visit.

b)

The change in days since the last visit for each year older a patient is, on average.

c)

The change in the age of the patient for each extra day since the last visit.

d)

The average days since last visit for all of the patients.

Explanation / Answer

in simple linear regression menaing of slope is change in y per unit change in x

here y is number of days last visited

and x is age of patient

so answere will be

The change in days since the last visit for each year older a patient is, on average.

b)

The change in days since the last visit for each year older a patient is, on average.

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