(b) In the manufacturing of a certain scientific instrument great importance is attached to the life of a particular critical component. This component is obtained in bulk from two sources, A and B, and in the course of inspection, the lives of 1000 of the components from each source are determined. The following frequency tables are obtained: -[3] Source A Source B Life(hours) No of Component Life (hours) No of component 1000-1020 40 1030-1040 339 1020-1040 1040-1050 136 1040-1060 364 1050-1060 25 1060-1080 372 1060-1070 20 1080-1100 85 1070-1080 130 1100-1120 43 1080-1090 350 Find missing value of x and Standard deviation, when = 1059.90 for each source and compare them.

(b) In the manufacturing of a certain scientific instrument great importance is attached to the life of a particular critical component. This component is obtained in bulk from two sources, A and B, and in the course of inspection, the lives of 1000 of the components from each source are determined. The following frequency tables are obtained: -[3] Source A Source B Life(hours) No of Component Life (hours) No of component 1000-1020 40 1030-1040 339 1020-1040 1040-1050 136 1040-1060 364 1050-1060 25 1060-1080 372 1060-1070 20 1080-1100 85 1070-1080 130 1100-1120 43 1080-1090 350 Find missing value of x and Standard deviation, when = 1059.90 for each source and compare them.

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Description: (b) In the manufacturing of a certain scientific instrument great importance isattached to the life of a particular critical component. This component is obtained inbulk from two sources, A and B, and in the course of inspection, the lives of 1000 o

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 2GP

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In the manufacturing of a certain scientific instrument great importance is attached to the life of a particular critical component. This component is obtained in bulk from two sources, A and B, and in the course of inspection, the lives of 1000 of the components from each source are determined. The following frequency tables are obtained:- Source A Source A Source B Source B Life (hours) No of components Life(hours) No of Components 1000-1020 1020-1040 1040-1060 1060-1080 1080-1100 1100-1120 40 96 364 372 85 43 1030-1040 1040-1050 1050-1060 1060-1070 1070-1080 1080-1090 339 136 25 20 130 350 i. Find Median and two quartiles for each group. ii. Find mean and Standard deviation for each source and compare them. iii. Which source do you think providing better quality of components and why?
In the manufacturing of a certain scientific instrument great importance is attached to the life of a particular critical component. This component is obtained in bulk from two sources, A and B, and in the course of inspection, the lives of 1000 of the components from each source are determined. The following frequency tables are obtained: - [3] Source A Source B Life (hours) No of components Life(hours) No of Components 1000-1020 1020-1040 1040-1060 1060-1080 1080-1100 1100-1120 40 x 364 372 85 43 1030-1040 1040-1050 1050-1060 1060-1070 1070-1080 1080-1090 339 136 25 20 130 350 Find missing value of x and Standard deviation, when = 1059.90 for each source and compare them.
In the manufacture of a certain scientific instrument great importance is attached to the life of a critical component. This component is obtained in bulk from two sources, A and B, and in a course of inspection, the lives of 1000 of the components from each source are determined. The following frequency tables are obtained:Source A Source BLife (hours) No. of components Life (hours) No. of components1000 – 1020 40 1030 – 1040 3391020 – 1040 96 1040 – 1050 1361040 – 1060 364 1050 – 1060 251060 – 1080 372 1060 – 1070 201080 – 1100 85 1070 – 1080 1301100 – 1120 43 1080 – 1090 350Examine the effectiveness of the measures of dispersion with which you are familiar for comparing the dispersion of the two distributions
(b) In the manufacturing of a certain scientific instrument great importance is attached to the life of a particular critical component. This component is obtained in bulk from two sources, A and B, and in the course of inspection, the lives of 1000 of the components from each source are determined. The following frequency tables are obtained: - Source A Source B Life(hours). No. Of components life(hours). No.of component 1000-1020 1020-1040 1040-1060 1060-1080 1080-1100 1100-1120 40 X 364 372 85 43 1030-1040 1040-1050 1050-1060 1060-1070 1070-1080 1080-1090 339 136 25 20 130 350
The company "TRAMAD" is conducting a study on the variation of the prices of its shares, listed on the Santiago Stock Exchange. For this purpose, it takes a sample of prices corresponding to the last 30 working days. The value indicated is the one that has been registered at the closing time of the operations: 450 540 280 440 350 720 400 190 410 700 600 500 250 780 290 580 320 220 320 660 300 360 320 605 180 300 210 520 290 420 a) Make a frequency table. b) TRAMAD estimates that your situation is not alarming if the percentage of days in which prices were less than or equal to $400 is less than 30%. What do you say Is this company's situation alarming or not? Explain. c) Calculate the mean and standard deviation. d) Calculate and interpret the quartile 1.
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The 98.6 degree standard for human body temperature was derived by a German doctor in 1868. In an attempt to verify his claim, Mackowiak, Wasserman, and Levine22 took temperatures from 148 healthy peopleover a 3-day period. A data set closely matching the one in Mackowiak’s article was derived by Allen Shoemaker, and appears in the Journal of Statistics Education.23 The body temperatures for these 130 individuals are shown in the relative frequency histogram that follows. See Attachment a. Describe the shape of the distribution of temperatures.b. Are there any unusual observations? Can you think of any explanation for these?c. Locate the 98.6-degree standard on the horizontal axis of the graph. Does it appear to be near the center of the distribution?