Question

Imagine a regression line that relates average systolic blood pressure to a person's age. For this setting let the average systolic blood pressure play the role of the response variable. The average blood pressure for people 26 years old is 92, while for those 44 years old the average is 108.
Recall from high school that the slope is "rise" over "run". Since this is a two-point line your model will fit perfectly (r = 1).

(a) What is the slope of the regression line?
  (Round the answer to two decimal places.)
   

(b) What is the intercept of the regression line?
  (Round the answer to two decimal places.)
   

(c) What is the estimated average systolic blood pressure for people who are 36 years old?
  (Round the answer to one decimal place.)
   

Answer 1

given average systolic blood pressure to a person's age

systolic blood pressure=y

age=x

In excel install analysis tool pack.

Goto data >data analysis >Regression

Select X range and Y rage.Click Ok.

we get below output:

	Coefficients
Intercept	68.88888889
x	0.888888889

y=68.89+0.89x

predicted systolic blood pressure=68.89+0.89*age

SolutionA:

slope=0.89

SolutionB:

y intercept=68.89

Solutionc:

we have regression eq

predicted systolic blood pressure=68.89+0.89*age

predicted systolic blood pressure=68.89+0.89*36

=100.93

ANSWER:100.9