j******e
发帖数: 362 | 1 太倒霉了，刚来的小留，还没车，今天坐公交回来，把课本给丢车上了。。。。可老师
布置作业明天就要交了，这一章还没看呢。现在买书也来不及了，哪个帅哥美女顺手帮
我做了啊？？？？谢谢啊。
Problem of the Week #10 (POTW#10):
An economist was interested in modeling the relationship among annual
income
, level of education, and work experience. The level of education is the
number of years of education beyond eighth grade, so 1 represents
completing
1 year of high school, 8 means completing 4 years of college, and so on.
Work experience is the number of years employed in the current profession.
From a random sample of 12 individuals, this economist obtained the
following data:
Work Experience (years) Level of Education Annual Income ($ thousands)
12 6 34.7
14 3 17.9
4 8 22.7
16 8 63.1
12 4 33.0
20 4 41.4
25 1 20.7
8 3 14.6
24 12 97.3
28 9 72.1
4 11 49.1
15 4 52.0
Required:
(a) Please state the regression equation corresponding to the above
scenario.
(b) Please conduct a regression analysis of these data. Be sure to
include (e.g., copy and paste) your relevant regression output as part of
your response.
(c) What can you conclude regarding the relationship among annual income,
level of education and work experience based on your regression analysis
results in part (b)? Be sure to cite relevant numeric indices or results of
your regression analysis as part of your response. |
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