Example 6.2: A car rental agency has available eight cars. Listed below is the number of these eight cars rented each day during June 2009. Select a sample of five days during the month, and: 1. Find the mean of the population. 2. Select three random samples of five days. Calculate the mean of each sample and compare it to the population mean. What is the sampling error in each case? June Rentals June Rentals 16 17 3 18 19 6. 20 6. 4 21 3. 2 22 3 23 3. 9. 24

MATLAB: An Introduction with Applications
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population parameter.
Example 6.2: A car rental agency has available eight cars. Listed below is the number of these
eight cars rented each day during June 2009. Select a sample of five days during the month, and:
1. Find the mean of the population.
2. Select three random samples of five days. Calculate the mean of each sample and compare
it to the population mean. What is the sampling error in each case?
June
Rentals
June
Rentals
16
2
17
3
3
18
3
4
19
6.
3
20
6.
21
3
7
22
2
8
3.
23
3
4
24
6.
10
7
25
11
3.
26
4.
12
4
27
1
13
4
28
14
4
29
3.
15
30
3
Solution:
Transcribed Image Text:population parameter. Example 6.2: A car rental agency has available eight cars. Listed below is the number of these eight cars rented each day during June 2009. Select a sample of five days during the month, and: 1. Find the mean of the population. 2. Select three random samples of five days. Calculate the mean of each sample and compare it to the population mean. What is the sampling error in each case? June Rentals June Rentals 16 2 17 3 3 18 3 4 19 6. 3 20 6. 21 3 7 22 2 8 3. 23 3 4 24 6. 10 7 25 11 3. 26 4. 12 4 27 1 13 4 28 14 4 29 3. 15 30 3 Solution:
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