1) A sociologist conducted a study to determine whether there is a linear relationship between family income level (in thousands of dollars) and percent of income donated to charities.
Income Level (In thousands of dollars): 42, 48, 50, 59, 65, 72
Donating Percent: 9, 10, 8, 5, 6, 3
A) Find the donating percentage for a person whose income level is $45,000.
B) Using alpha: 0.05, is there enough evidence to conclude that there is a significant linear correlation between the income level and the donating percent?
C) Find the regression equation
D)calculate the correlation coefficient
e)find the centroid
1) A sociologist conducted a study to determine whether there is a linear relationship between
family income level (in thousands of dollars) and percent of income donated to charities....
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