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  3. for exercise 1 through 7, do a complete regression

For Exercise 1 through 7, do a complete regression analysis by performing the following steps. a.Draw the...

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Basic Math

For Exercise 1 through 7, do a complete regression analysisby performing the following steps.

a.Draw the scatterplot.

b.Compute the valueof the correlation coefficient.

c.Test thesignificance of the correlation coefficient at α = 0.01,using Table I or use the P-value method.

d.Determine theregression line equation if r is significant.

e.Plot theregression line on the scatter plot, if appropriate.

f.Predicty′ for a specific value of x, if appropriate.

3.PuppyCuteness and Cost A researcher feels that a pet storebases the cost of puppies on the cuteness of the animals. Eightpuppies were rated on their cuteness. The ratings were from 1 to 6,with 6 being the highest rating. The ratings and the cost indollars of the puppies are shown. Is there a significantrelationship between the variables? Please do by hand andshow work.

Rating

6

2

1

4

5

2

3

4

Cost

$80

$42

$27

$64

$50

$39

$18

$44

Answer:3.H0: p = 0; H1:ρ ≠ 0; r = 0.761; C.V. = ±0.834; d.f. = 6; do notreject. There is not a significant linear relationship between therating and the cost. No regression analysis should be done.P = 0.0284

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