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4 61.7 1985 61.8 1986 62.0 1987 62.7 1990 62.8 1992 62.9

4 61.7 1985 61.8 1986 62.0 1987 62.7 1990 62.8 1992 62.9

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question

Year

Percent of workers paid hourly rates

1979

61.2

1980

60.7

1981

61.3

1982

61.3

1983

61.8

1984

61.7

1985

61.8

1986

62.0

1987

62.7

1990

62.8

1992

62.9

The percent of female wage and salary workers who are paid hourly rates is given above for the years 1979-1992.

a. Using "year" as the independent variable and "percent" as the dependent variable, make a scatter plot of the data.

b. Does it appear from inspection that there is a relationship between the variables?

c. Find the estimated percents for 1991 and 1988.

d. Use the two points in part C to plot the least squares line on your graph from part A.

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