The following table gives the data from a local school district on children's ages (x) and...

The following table gives the data from a local school district on children's ages (x) and the reading level (y)

Ages (in yrs.), x	6	7	8	9	10	11	12	13	14	15
Reading level, y	1.3	2.2	3.7	4.1	4.9	5.2	6.0	7.1	8.5	9.7

a). Find the correlation coefficient (r) between age (in years) and reading level. (write your calculator steps)

b) Find the coefficient of determination (r² )

c) Find the slope of the regression line

d) Find the intercept of the regression line

e) Find the estimated equation of the regression line

f) Predict the reading level for age 10.5 years

Solutions

Expert Solution

orchestra answered 11 months ago

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