What fraction of the variation in salaries can be explained

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Reference no: EM131809013

Question: a. What fraction of the variation in salaries can be explained by the fact that some employees are older than others?

b. What salary would you expect for a 42-year-old individual?

c. Find the 95% confidence interval for the salary of a new individual (from the same population from which the data were drawn) who is 42 years old.

d. Find the 95% confidence interval for the mean salary of all 42-year olds in the population.

Reference no: EM131809013

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