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1)      A personal director is interested in studying the relationship (if any) between age and salary. Sixteen...

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Statistics

1)      A personal director isinterested in studying the relationship (if any) between age andsalary. Sixteen employees are randomly selected and their age andsalary are recorded.

AGE AND SALARY

AGE

SALARY (in Thousands of $)

25

$22

55

$45

27

$43

30

$30

22

$24

33

$53

19

$18

45

$38

49

$39

37

$45

62

$60

40

$35

35

$34

29

$30

58

$73

52

$42

a)      Plot the data points on ascatterplot.

b)      Determine the correlationcoefficient   

c)       Describe the relationshipindicated by the correlation coefficient and the scatterplot.

d)      If there is a linearrelationship, find the equation of the line of regression

e)      Graph the line of regression onthe same axes where you constructed the scatterplot in (a)above

f)       Use either your line ofregression or the equation of the line of regression to predictsalaries for Age = 50 and Age = 70.

Answer & Explanation Solved by verified expert
4.3 Ratings (813 Votes)
a b X Values 618Mean 38625X Mx2 SSx 271575Y Values 631Mean 39438Y My2 SSy 3045938X and Y CombinedN 16X MxY    See Answer
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