TABLE 3.4 Average Annual Consumer Price Index (1982-1984 = 100) Year CPI Year CPI Year CPI Year CPI 1977 60.6 1987 113.6 1997 160.5 2007 207.3 1978 65.2 1988 118.3 1998 163.0 2008 215.3 1979 72.6 1989 124.0 1999 166.6 2009 214.5 1980 82.4 1990 130.7 2000 172.2 2010 218.1 1981 90.9 1991 136.2 2001 177.1 2011 224.9 1982 96.5 1992 140.3 2002 179.9 2012 229.6 1983 99.6 1993 144.5 2003 184.0 2013 233.0 1984 103.9 1994 148.2 2004 188.9 2014 236.7 1985 107.6 1995 152.4 2005 195.3 2015 237.0 1986 109.6 1996 156.9 2006 201.6 2016 240.0 4. The average price of tuition and fees at public 4-year colleges and universities increased from$1,720 in 1990 to $6,600 in 2009. Calculate the relative change in price from 1990 to 2009 andcompare it to the overall rate of inflation as measured by the Consumer Price Index. Was thetuition increase greater or less than the overall rate of inflation? Clearly show your calculationsfor both the relative change in price from 1990 to 2009 and for the overall rate of inflation from1990 to 2009 and answer the question. 5. Suppose a test for a disease is 85% accurate for those who have the disease (true positives) and 85% accurate for those who do not have the disease (true negatives). Within a sample of 4000 patients, the incidence rate of the disease is the national average. Complete parts (a) through (c) below. Disease No Disease Total Tested positive 51 591 642 Tested negative 3349 3358 Total 60 3940 4000 a. Of those with the disease, what percentage test positive? b. Of those who test positive, what percentage have the disease?

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TABLE 3.4
Average Annual Consumer Price Index (1982-1984 = 100)
Year
CPI
Year
CPI
Year
CPI
Year
CPI
1977
60.6
1987
113.6
1997
160.5
2007
207.3
1978
65.2
1988
118.3
1998
163.0
2008
215.3
1979
72.6
1989
124.0
1999
166.6
2009
214.5
1980
82.4
1990
130.7
2000
172.2
2010
218.1
1981
90.9
1991
136.2
2001
177.1
2011
224.9
1982
96.5
1992
140.3
2002
179,9
2012
229.6
1983
99.6
1993
144,5
2003
184.0
2013
233.0
1984
103.9
1994
148.2
2004
236.7
188.9
2014
1985
107.6
1995
152.4
2005
195.3
2015
237.0
1986
109.6
1996
156.9
2006
201.6
2016
240.0
4. The average price of tuition and fees at public 4-year colleges and universities increased from$1,720
in 1990 to $6,600 in 2009. Calculate the relative change in price from 1990 to 2009 andcompare it to the
overall rate of inflation as measured by the Consumer Price Index. Was thetuition increase greater or
less than the overall rate of inflation? Clearly show your calculationsfor both the relative change in price
from 1990 to 2009 and for the overall rate of inflation from1990 to 2009 and answer the question.
5. Suppose a test for a disease is 85% accurate for those who have the disease (true positives) and
85% accurate for those who do not have the disease (true negatives). Within a sample of 4000
patients, the incidence rate of the disease is the national average. Complete parts (a) through (c)
below.
Disease
No Disease
Total
Tested positive
51
591
642
Tested negative
3349
3358
Total
60
3940
4000
Of those with the disease, what percentage test positive?
a.
b. Of those who test positive, what percentage have the disease?
Transcribed Image Text:TABLE 3.4 Average Annual Consumer Price Index (1982-1984 = 100) Year CPI Year CPI Year CPI Year CPI 1977 60.6 1987 113.6 1997 160.5 2007 207.3 1978 65.2 1988 118.3 1998 163.0 2008 215.3 1979 72.6 1989 124.0 1999 166.6 2009 214.5 1980 82.4 1990 130.7 2000 172.2 2010 218.1 1981 90.9 1991 136.2 2001 177.1 2011 224.9 1982 96.5 1992 140.3 2002 179,9 2012 229.6 1983 99.6 1993 144,5 2003 184.0 2013 233.0 1984 103.9 1994 148.2 2004 236.7 188.9 2014 1985 107.6 1995 152.4 2005 195.3 2015 237.0 1986 109.6 1996 156.9 2006 201.6 2016 240.0 4. The average price of tuition and fees at public 4-year colleges and universities increased from$1,720 in 1990 to $6,600 in 2009. Calculate the relative change in price from 1990 to 2009 andcompare it to the overall rate of inflation as measured by the Consumer Price Index. Was thetuition increase greater or less than the overall rate of inflation? Clearly show your calculationsfor both the relative change in price from 1990 to 2009 and for the overall rate of inflation from1990 to 2009 and answer the question. 5. Suppose a test for a disease is 85% accurate for those who have the disease (true positives) and 85% accurate for those who do not have the disease (true negatives). Within a sample of 4000 patients, the incidence rate of the disease is the national average. Complete parts (a) through (c) below. Disease No Disease Total Tested positive 51 591 642 Tested negative 3349 3358 Total 60 3940 4000 Of those with the disease, what percentage test positive? a. b. Of those who test positive, what percentage have the disease?
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