The average number of articles produced by two machines per day are 200 and 250 with standard deviations 20 and 25 respectively on the basis of records of 25 days' production. Can you regard both the machines equally efficient at 1% level of significance ?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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The average number of articles produced by
two machines per day are 200 and 250 with
standard deviations 20 and 25 respectively on
the basis of records of 25 days' production. Can
you regard both the machines equally efficient at
1% level of significance ?
Transcribed Image Text:The average number of articles produced by two machines per day are 200 and 250 with standard deviations 20 and 25 respectively on the basis of records of 25 days' production. Can you regard both the machines equally efficient at 1% level of significance ?
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