Answered: 1) Randomly pick 5 numbers from the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

1) Randomly pick 5 numbers from the attached link (use a Random number generator - on Google/calculator) and say 1 - 100 and pick 5 numbers, remember, no repeats (kind of like the first discussion) then find the average of the test scores that correlate to it. This is your sample average. List your 5 numbers and write down your average.

2) The actual mean of the scores is 63.52, how off were you? The standard deviation of the data is 25.606 (think about if these are your sample statistics or population parameters).

3) Find your Margin of Error using 95% confidence. I gave you the population standard deviation so think about if it's a z-test or t-test.

Position
Score on test
Position
Score on test
Position Score on test
Position Score on
59
26
32
51
34
76
80
2
34
27
41
52
26
77
78
3
23
28
97
53
86
78
75
28
29
95
54
72
79
98
90
30
39
55
85
80
20
31
16
56
36
81
53
32
63
57
81
82
33
23
58
23
83
9
34
74
59
100
84
10
35
41
60
52
85
11
36
73
61
97
86
12
37
55
62
83
87
13
38
80
63
95
88
14
39
43
64
89
15
40
65
90
16
41
66
49
91
17
42
67
72
92
18
68
77
19
69
93
20
70
61
21
44
71
100
68
89
72
54
20
99
73
71
100
87
100
67
Population Mean
63.52
Population
standard
deviation
25.606
さド
8 あお
3 88RE&5 号
st

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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