Solutions( every step)and answers need.Suppose that the following represents the

Solutions( every step)and answers need.Suppose
that the following represents the (estimated) sample regression results for
theheights and weights of a random
sample of 200 twenty-year-olds.Weight = -99.41 + 2.5 X Height R2
= 0.75 SER = 12Where
weight is measured in pounds and height is measured in inches.a)
Predict
the weights of (i) Bell who is 70 inch tall and that of (ii) Normal who is 62
inch tall.b)
If
Chi grew 2 inch taller in a year explain how to find the change in weight. Calculate
the change in weight (show the calculation).c)
What
is the sample standard deviation of weights (USE FORMULAS FOR R2 and
SER pages 120 and 121 of the textbook)?d)
Suppose
that you are asked to present the regression results to Europeans (who use
metric system of measurement (that is- in centimeter and kilogram units)
re-write the regression in those units to make them understand the results
better.NOTE: I kilogram = 2.2 pounds and 1 inch = 2.5 centimeters
approximately.e)
Which
parts of the regression results are unaffected by the change in units. Explain
why are they unaffected.

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