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A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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I need some help with this question
Transcribed Image Text:Construct a normal probability plot for the following sample of observations on coating thickness for low-viscosity paint.
0.82
0.86
0.87
1.02
1.08
1.12
1.31
1.31
1.48
1.49
1.57
1.61
1.63
1.70
1.75
1.84
n USE SALT
Determine the z percentile associated with each sample observation. (Round your answers to two decimal places.)
Sample observation
0.82
0.86
0.87
1.02
1.08
1.12
1.31
1.31
z percentile
Sample observation
1.48
1.49
1.57
1.61
1.63
1.70
1.75
1.84
z percentile
Choose the plot that best represents the normal probability plot for the sample of observations.
thickness
thickness
1.8
1.8
1.6
1.6
1.4
1.4
1.2
1.2
1.0
1.0
0.8
0.8
-1
-1
1
thickness
thickness
1.8 .
1.8
1.6
1.6
1.4
1.4
1.2
1.2
1.0
1.0
0.8
0.8
1
1
2
-1
1
2
Would you feel comfortable estimating population mean thickness using a method that assumed a normal population distribution?
O Yes, the probability plot is reasonably straight.
O Yes, the probability plot is not straight.
O No, the probability plot is reasonably straight.
O No, the probability plot is not straight.
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