Question No. 2 Eleven sales executive trainees are assigned selling jobs right after their recruitment. After a fortnight they are withdrawn from their field duties and given a month’s training for executive sales. Sales executed by them in thousands of rupees before and after the training, in the same period are listed below: Sales Before Training Sales After Training 23 24 20 19 19 21 21 18 18 20 20 22 18 20 17 20 23 23 16 20 a. Do these data indicate that the training has contributed to their performance? b. Find the 95 per cent confidence Interval of the training.

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter5: A Survey Of Other Common Functions
Section5.6: Higher-degree Polynomials And Rational Functions
Problem 1TU: The following fictitious table shows kryptonite price, in dollar per gram, t years after 2006. t=...
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Question No. 2 Eleven sales executive trainees are assigned selling jobs right after their recruitment.
After a fortnight they are withdrawn from their field duties and given a month’s
training for executive sales. Sales executed by them in thousands of rupees before
and after the training, in the same period are listed below:
Sales Before
Training
Sales After
Training
23 24
20 19
19 21
21 18
18 20
20 22
18 20
17 20
23 23
16 20
a. Do these data indicate that the training has contributed to their performance?
b. Find the 95 per cent confidence Interval of the training.

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