 The table shows the rise in the percentage of births to U.S. unmarried women from 1960 through 2009 Year | x = years](http://img.homeworklib.com/questions/7800f170-50bf-11ec-b3a6-bb2129931732.png?x-oss-process=image/resize,w_560)
Does anybody think they can
solve a-d? (Descriptive Statistics)
Homework Answers
Sum of X = 149
Sum of Y = 136
Mean X = 24.8333
Mean Y = 22.6667
Sum of squares (SSX) = 1700.8333
Sum of products (SP) = 1261.6667
Regression Equation = y = bX + a
b = SP/SSX = 1261.67/1700.83
= 0.74179
a = MY - bMX = 22.67 -
(0.74*24.83) = 4.24547
y = 0.74179X + 4.24547
B) The slope is 0.74179 and it interprets that if you increase time by 1 year the percentage of births in US by unmarried women increase by 0.74179.
c) In year 2016 so value of x = 2016 - 1960 = 56
so y = 0.74179*56+ 4.24547 = 45.7859 = 46%
d) In year 2020 so value of x = 2020 - 1960 = 60
so y = 0.74179*60+ 4.24547 = 48.7531 = 49%
If any doubt please feel free to ask through the comments section and if no doubt please give a like. Thank You
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Does anybody think they can
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