GM 533 Statistics Final Examination | Complete Solution
Data Set Ford Mustang Automobiles
PRICE CONVERT AGE MILES TRANS Variables:
12688 0 1 8200 0 PRICE = Asking price in dollars
11500 0 1 27000 1 CONVERT = 1 if convertible and 0 if not
11650 0 1 3000 0 AGE = age of car in years
10995 1 2 27000 1 MILES = odometer reading in miles
6200 0 3 55000 1 TRANS = 1 if automatic and 0 if manual
9500 0 3 22000 0
8700 0 3 25000 1 Source: Practical Data Analysis 2nd, Vol I, II
12500 0 2 23800 0 Bryant-Smith McGraw-Hill ISBN -13:978-0-69-778527-5
10488 1 4 20000 0 For Applied Managerial Statistics GM533 DeVry University
5988 0 4 37000 0
7288 1 5 84000 1
3590 0 5 55000 0
2800 0 6 62000 0
6995 1 7 78000 1
4900 0 7 60000 0
2488 0 7 67000 1
4200 1 8 65000 1
12990 1 1 13300 1
14500 1 3 31000 1
10900 1 3 4000 1
13500 1 3 23000 0
12000 0 3 89000 0
8500 0 3 34000 1
4388 0 4 80000 0
3000 0 7 95000 0
3900 0 8 90000 0
3350 0 8 91000 0
10500 0 3 17000 0
12988 0 1 21000 1
6500 0 3 73000 0
12900 1 2 19000 0
9000 0 2 32000 0
7000 0 6 56000 0
5900 0 4 110000 1
2500 0 6 92000 0
1) Use descriptive statistics to describe the price of the autos in the data set TCO A
assuming it is a sample. 5 points
2) Draw a histogram of the Price of autos in the data set. TCO A
5 points
3) Compare the average price of the five autos with the lowest mileage TCO A
to the average price of the five autos with the highest mileage. 5 points
Use a column graph to illustrate your findings.
4) Stanford-Binet IQ Test scores are normally distributed with a mean score of 100 TCO B
and a standard deviation of 16.
25 points
a) Find the probability that a randomly selected person has an IQ score over 133
b) Find the probability that a randomly selected person has an IQ score under 86
c) Find the probability that a randomly selected person has an IQ score between 72 and 128
d) Find the probability a randomly selected person has an IQ within 1.5 standard deviations of the mean.
e) Find the lowest IQ score for a person in the upper 6% of the Stanford-Binet IQ Test score distribution.
Use the following Data Set A to answer questions 5, 6, and 7.
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