The following data (see attached image) has been collected. You collected 8 samples, every day for 10 days. What is X-double bar?What is R bar?What is the sample size, n? SAMPLE NUMBERDay234678AverageRange116.0715.9715.9115.9315.9716.0715.9616.1016.000.19215.7516.0016.1116.1816.1415.6115.8616.2015.980.59316.5115.8915.8616.0615.9416.1615.9616.0416.050.65415.9815.5516.1216.0116.2516.0916.1216.0716.020.71515.7215.4215.9115.7415.4615.5515.7215.5015.630.49616.0316.0315.6515.8815.8216.0316.4316.2116.010.77715.9716.0216.0715.9815.7415.8716.2315.7715.960.49816.2116.3715.8015.7816.1015.8915.9015.7215.970.64916.1815.9515.8715.7315.7815.9115.9715.9115.910.461016.3115.8015.7416.0815.6515.7815.8616.4015.950.75Average15.950.57

1. X-double bar = 15.95 2. R bar = 0.57

Answered: The following data (see attached image)…

The following data (see attached image) has been collected. You collected 8 samples, every day for 10 days. What is X-double bar? What is R bar? What is the sample size, n?

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

The following data (see attached image) has been collected. You collected 8 samples, every day for 10 days.

What is X-double bar?
What is R bar?
What is the sample size, n?

SAMPLE NUMBER
Day
2
3
4
6
7
8
Average
Range
1
16.07
15.97
15.91
15.93
15.97
16.07
15.96
16.10
16.00
0.19
2
15.75
16.00
16.11
16.18
16.14
15.61
15.86
16.20
15.98
0.59
3
16.51
15.89
15.86
16.06
15.94
16.16
15.96
16.04
16.05
0.65
4
15.98
15.55
16.12
16.01
16.25
16.09
16.12
16.07
16.02
0.71
5
15.72
15.42
15.91
15.74
15.46
15.55
15.72
15.50
15.63
0.49
6
16.03
16.03
15.65
15.88
15.82
16.03
16.43
16.21
16.01
0.77
7
15.97
16.02
16.07
15.98
15.74
15.87
16.23
15.77
15.96
0.49
8
16.21
16.37
15.80
15.78
16.10
15.89
15.90
15.72
15.97
0.64
9
16.18
15.95
15.87
15.73
15.78
15.91
15.97
15.91
15.91
0.46
10
16.31
15.80
15.74
16.08
15.65
15.78
15.86
16.40
15.95
0.75
Average
15.95
0.57

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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