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A study was done to look at the relationship between number of vacation days employees take
each year and the number of sick days they take each year. The results of the survey are shown
below.
A. r =
B. r2 =
C. Find the equation of the least squares regression line:
= y + x.
D. What does the regression line predict for the number of sick days an employee took if that
person took 11 vacation days that year?
(Note that this may not be a reliable prediction. Why?)
E. Test the hypothesis that there is a linear correlation between the number of vacation days and
the number of sick days. Use a level of significance of 0.05.
H0: r = 0
Ha: r Not Equal to 0
p-Value =Vacation712938105810151270913Sick40122093510783170

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A study was done to look at the relationship between number of vacat.pdf

  • 1. A study was done to look at the relationship between number of vacation days employees take each year and the number of sick days they take each year. The results of the survey are shown below. A. r = B. r2 = C. Find the equation of the least squares regression line: = y + x. D. What does the regression line predict for the number of sick days an employee took if that person took 11 vacation days that year? (Note that this may not be a reliable prediction. Why?) E. Test the hypothesis that there is a linear correlation between the number of vacation days and the number of sick days. Use a level of significance of 0.05. H0: r = 0 Ha: r Not Equal to 0 p-Value =Vacation712938105810151270913Sick40122093510783170