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Answer the following questions concerning the relationship between average sick days taken over the past 5 years by senior managers and their performance rating using the this data. Be sure to show all mathematics calculations.
|Sick days taken||4||8||3||7||1|
|1. Draw a scatter diagram of this data and calculate the coefficient of correlation to
determine if average sick days taken over the last 5 years has an affect on a
senior manager's most recent performance rating.
2. Calculate the coefficient of determination and the coefficient of
4. Could rho be zero at the .01 level of significance? Franklin Pierce college
students may skip this question.
6. Calculate the expected performance rating for a senior manager who averaged 5
absences per year over the
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|2.||90.6% and 9.4%|
|3.||High negative, 90.7% of the variability in rating is accounted for by variability in absences and 9.3% of the variability in rating is not accounted for by variability in absences.|
|5.||Y.x = 10.4 - .964x (Hint: when calculating b, you have a double negative so 4.43 is added to 6.)|
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