(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.
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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