Homework Answers
sample mean= 130.05
standard deviation= 9.055
b) Histogram
c) 
median= 128
lower quartile= 124
upper quartile= 135.25
NOTE : I used excel for finding all values.
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a. Calculate the sample average. b. Calculate the sample standard deviation. 4. The time to failure...
4.15 construct a box plot for the data in exercise 4.1 down, then across Table 4B...
4.15 construct a box plot for the data in exercise
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Please do NOT use Minitab - show all calculations for creating the probability plot. Using Excel...
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The measurements of a temperature sensor (in °F) are provided. Is the set of measurements well...
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Grambling State University Department of Mathematies and Physics Probability and Statisties 1,SPLING 2019 Exam I, 01/23/2019...
Grambling State University Department of Mathematies and Physics Probability and Statisties 1,SPLING 2019 Exam I, 01/23/2019 Please show all the details I. The amount of protein(in grams) for a variety of some fast food reported here. 1. Construct a frequency distribution using 6 cl a histogram, a frequency polygon, and an ogive for the data. 123, 130, 120, 127, 144, 126, 135, 120, 129, 129, 125, 115, 118, 127, 119, 122, 112, 126, 134, 115, 127, 135, 126, 143, 135,...
(1 point) Archeologists have discovered a sample of ancient Egyptian skulls from two different time periods,...
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Question 3 [16 marks] The average particulate concentration, in micrograms per cubic meter, was measured in...
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4.15 construct a box plot for the data in exercise
4.1
down, then across Table 4B Electronic Component Failure Time 127 125 131 124 123 120 121 136 140 118 131 125 56 Chapter 4 Statistical Inference about Product Table 4E. Continued 119 128 133 137 124 142 123 137 125 124 128 129 130 122 133 124 129 121 142 151 160 125 141 125 140 131 129 126
Please do NOT use Minitab - show all calculations for creating
the probability plot. Using Excel is okay.
Reconsider Problem 3 in Homework 3. Is the set of measurements well described by a normal distribution? Show all the calculations. The measurements of a temperature sensor (in °F) are shown below. 124 118 131 125 133 123 120 119 128 133 127 125 131 124 129 121 142 151 160 125 121 136 140 137 125 124 128 129 130 141...
(Use Excel) italy common for people to put on weight when they quit smoking While a small weight gain is normal c e weight gain can create new health concerns that brode the benefits of not smoking. The accompanying table shows a portion of the weight data for 50 women before quitting and six months after quitting Use Table 2 Weight Before Quilling 140 144 138 Weight After Quilling 155 142 163 146 129 149 136 127 158 145 118...
Grambling State University Department of Mathematies and Physics Probability and Statisties 1,SPLING 2019 Exam I, 01/23/2019 Please show all the details I. The amount of protein(in grams) for a variety of some fast food reported here. 1. Construct a frequency distribution using 6 cl a histogram, a frequency polygon, and an ogive for the data. 123, 130, 120, 127, 144, 126, 135, 120, 129, 129, 125, 115, 118, 127, 119, 122, 112, 126, 134, 115, 127, 135, 126, 143, 135,...
(1 point) Archeologists have discovered a sample of ancient Egyptian skulls from two different time periods, 4000 B.C. and 150 A.D. They believe that the mean maximum skull breadth (the width of the skull at its widest part) has increased from 4000 B.C. to 150 A.C.A sample of 13 Egyptian skull breadth (in mm) from each time period is show below: 4000 B.C. 118, 125, 134, 129, 122, 129, 132, 129 150 A.D. 132, 131, 137, 140, 142, 134, 132,...
Question 3 [16 marks] The average particulate concentration, in micrograms per cubic meter, was measured in a petrochemical complex at 36 randomly chosen times, with the following concentrations resulting: 5, 18, 15, 77, 133, 220, 130, 85, 103, 125, 80, 107, 124, 106, 113, 165, 137, 125, 124, 65, 82, 95, 77, 115, 70, 110, 144, 128, 133, 81, 129, 114, 45, 92, 117, 153 a) Represent the data in a histogram. b) [l mark] Is the histogram approximately normal?...
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