What distribution has the largest spread? The smallest?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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What distribution has the largest spread? The smallest?
P17. The GMAC Insurance National Driver's Test
found that about 10% of drivers ages 16 to 65
would fail a written driver's test if they had to
take one today. [Source: Insurance Journal, 2005, www
insurancejournal.com.] The sampling distributions
in Display 7.44 give the proportion of drivers
who would fail for samples of size 10, 20, 40,
and 100 taken from a population like this
one, where p
0.10.
Relative Frequency
Relative Frequency
0.40
0.35
0.30-
0.15-
0.10-
0.05
0.00
0.20
0.08
0.04
0.0 0.2 0.4 0.6 0.8 1.0
Sampling Distribution
for n = 10 and p=0.10
MITTITT
0.0 0.2 0.4 0.6 0.8 1.0
Sampling Distribution
for n 40 and p = 0.10
Relative Frequency
Relative Frequency
0.25
0.10
0.05
0.00
0.0 0.2 0.4 0.6 0.8 1.0
Sampling Distribution
for 20 and p = 0.10
0.12-
0.10-
0.08-
0.06
0.04
0.02
0.00
0.0 0.2 0.4 0.6 0.8 1.0
Sampling Distribution
for 100 and p = 0.10
Display 7.44 Exact sampling distributions of p for
samples of size 10, 20, 40, and 100
when p0.10.
P
b.
C.
d.
Transcribed Image Text:P17. The GMAC Insurance National Driver's Test found that about 10% of drivers ages 16 to 65 would fail a written driver's test if they had to take one today. [Source: Insurance Journal, 2005, www insurancejournal.com.] The sampling distributions in Display 7.44 give the proportion of drivers who would fail for samples of size 10, 20, 40, and 100 taken from a population like this one, where p 0.10. Relative Frequency Relative Frequency 0.40 0.35 0.30- 0.15- 0.10- 0.05 0.00 0.20 0.08 0.04 0.0 0.2 0.4 0.6 0.8 1.0 Sampling Distribution for n = 10 and p=0.10 MITTITT 0.0 0.2 0.4 0.6 0.8 1.0 Sampling Distribution for n 40 and p = 0.10 Relative Frequency Relative Frequency 0.25 0.10 0.05 0.00 0.0 0.2 0.4 0.6 0.8 1.0 Sampling Distribution for 20 and p = 0.10 0.12- 0.10- 0.08- 0.06 0.04 0.02 0.00 0.0 0.2 0.4 0.6 0.8 1.0 Sampling Distribution for 100 and p = 0.10 Display 7.44 Exact sampling distributions of p for samples of size 10, 20, 40, and 100 when p0.10. P b. C. d.
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