1. As quality manager of a firm producing mineral water, you are concerned with the amount of water in the bottle which is measured by its weight. The following data represents the weights of 150 bottles that you supplied in your city. 9.17 9.25 9.70 9.58 9.34 9.97 10.36 10.24 9.29 10.74 10.28 10.14 10.77 10.85 10.64 10.31 10.73 9.26 9.24 10.64 10.47 10.59 10.49 9.80 10.76 10.48 9.43 9.78 9.39 10.18 10.43 9.61 10.53 9.68 10.28 10.96 10.89 10.21 10.35 10.23 9.92 10.88 9.44 10.56 10.84 9.44 9.91 10.36 10.60 10.23 10.15 10.91 10.63 9.31 9.53 9.31 9.86 9.25 9.64 10.60 10.67 10.78 10.27 9.23 9.57 10.41 9.37 10.89 9.26 9.70 10.44 9.37 10.44 9.77 10.70 10.02 9.76 9.34 10.63 9.82 9.45 10.90 10.02 9.74 10.97 10.72 10.61 9.08 9.50 10.45 9.19 9.46 9.75 10.53 9.09 9.10 9.78 9.27 9.19 10.67 9.29 10.76 9.36 9.87 10.13 10.52 10.63 10.18 9.81 10.87 9.26 9.48 9.58 9.67 10.23 9.96 10.08 10.33 10.49 9.45 9.60 9.43 10.59 9.81 10.83 10.07 9.77 9.10 9.15 9.01 10.13 9.45 9.92 10.13 9.70 10.19 10.08 9.77 10.67 10.80 10.89 9.40 9.42 9.75 10.07 9.58 10.73 10.09 9.96 10.18 9.11 10.96 9.73 10.81 10.57 10.49 10.87 10.06 10.62 9.39 a. You select a random sample of 5 (sequential selection is not allowed) and calculate the interval estimate of the mean weights population standard deviation as 0.6. (Please mention the data points of the sample that you have selected, if you fail to do so your submission will not be evaluated) b. You found out that the standard deviation of the population is incorrect. So now you should rely on the sample standard deviation. Find the new interval estimate of the mean weights of the bottles at 95% confidence considering of the bottles at 95% confidence considering the same sample as you chose in (a).
1. As quality manager of a firm producing mineral water, you are concerned with the amount of water in the bottle which is measured by its weight. The following data represents the weights of 150 bottles that you supplied in your city. 9.17 9.25 9.70 9.58 9.34 9.97 10.36 10.24 9.29 10.74 10.28 10.14 10.77 10.85 10.64 10.31 10.73 9.26 9.24 10.64 10.47 10.59 10.49 9.80 10.76 10.48 9.43 9.78 9.39 10.18 10.43 9.61 10.53 9.68 10.28 10.96 10.89 10.21 10.35 10.23 9.92 10.88 9.44 10.56 10.84 9.44 9.91 10.36 10.60 10.23 10.15 10.91 10.63 9.31 9.53 9.31 9.86 9.25 9.64 10.60 10.67 10.78 10.27 9.23 9.57 10.41 9.37 10.89 9.26 9.70 10.44 9.37 10.44 9.77 10.70 10.02 9.76 9.34 10.63 9.82 9.45 10.90 10.02 9.74 10.97 10.72 10.61 9.08 9.50 10.45 9.19 9.46 9.75 10.53 9.09 9.10 9.78 9.27 9.19 10.67 9.29 10.76 9.36 9.87 10.13 10.52 10.63 10.18 9.81 10.87 9.26 9.48 9.58 9.67 10.23 9.96 10.08 10.33 10.49 9.45 9.60 9.43 10.59 9.81 10.83 10.07 9.77 9.10 9.15 9.01 10.13 9.45 9.92 10.13 9.70 10.19 10.08 9.77 10.67 10.80 10.89 9.40 9.42 9.75 10.07 9.58 10.73 10.09 9.96 10.18 9.11 10.96 9.73 10.81 10.57 10.49 10.87 10.06 10.62 9.39 a. You select a random sample of 5 (sequential selection is not allowed) and calculate the interval estimate of the mean weights population standard deviation as 0.6. (Please mention the data points of the sample that you have selected, if you fail to do so your submission will not be evaluated) b. You found out that the standard deviation of the population is incorrect. So now you should rely on the sample standard deviation. Find the new interval estimate of the mean weights of the bottles at 95% confidence considering of the bottles at 95% confidence considering the same sample as you chose in (a).
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Question
Transcribed Image Text:1. As quality manager of a firm producing mineral water, you are
concerned with the amount of water in the bottle which is measured
by its weight. The following data represents the weights of 150 bottles
that you supplied in your city.
9.17
9.25
9.70
9.58
9.34
9.97
10.36
10.24
9.29
10.74
10.28
10.14
10.77
10.85
10.64
10.31
10.73
9.26
9.24
10.64
10.47
10.59
10.49
9.80
10.76
10.48
9.43
9.78
9.39
10.18
10.43
9.61
10.53
9.68
10.28
10.96
10.89
10.21
10.35
10.23
9.92
10.88
9.44
10.56
10.84
9.44
9.91
10.36
10.60
10.23
10.15
10.91
10.63
9.31
9.53
9.31
9.86
9.25
9.64
10.60
10.67
10.78
10.27
9.23
9.57
10.41
9.37
10.89
9.26
9.70
10.44
9.37
10.44
9.77
10.70
10.02
9.76
9.34
10.63
9.82
9.45
10.90
10.02
9.74
10.97
10.72
10.61
9.08
9.50
10.45
9.19
9.46
9.75
10.53
9.09
9.10
9.78
9.27
9.19
10.67
9.29
10.76
9.36
9.87
10.13
10.52
10.63
10.18
9.81
10.87
9.26
9.48
9.58
9.67
10.23
9.96
10.08
10.33
10.49
9.45
9.60
9.43
10.59
9.81
10.83
10.07
9.77
9.10
9.15
9.01
10.13
9.45
9.92
10.13
9.70
10.19
10.08
9.77
10.67
10.80
10.89
9.40
9.42
9.75
10.07
9.58
10.73
10.09
9.96
10.18
9.11
10.96
9.73
10.81
10.57
10.49
10.87
10.06
10.62
9.39
a. You select a random sample of 5 (sequential selection is not
allowed) and calculate the interval estimate of the mean
weights of the bottles at 95% confidence considering
population standard deviation as 0.6. (Please mention the data
points of the sample that you have selected, if you fail to do so
your submission will not be evaluated)
b. You found out that the standard deviation of the population is
incorrect. So now you should rely on the sample standard
deviation. Find the new interval estimate of the mean weights
of the bottles at 95% confidence considering the same sample
as you chose in (a).
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