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A company claims that the course it offers signifieantly increases the writing speed of secretaries. The following table gives the scores of 8 secretaries before and after they attended this course | 2.8 | 3.1 | 2.7 | 3.4 | 2.6 | 2.8 | 2.5 | 2.6 | 3.2 3.0 3.5 3.7 2.4 2.9 | 2.9 Before x, 2.3 After y, Test at the 5% significance level if there is an improvement in the job performances of employees due to hypnosis. Assume that the population of paired differences is (approximately) normally distributed.

A company claims that the course it offers signifieantly increases the writing speed of secretaries. The following table gives the scores of 8 secretaries before and after they attended this course | 2.8 | 3.1 | 2.7 | 3.4 | 2.6 | 2.8 | 2.5 | 2.6 | 3.2 3.0 3.5 3.7 2.4 2.9 | 2.9 Before x, 2.3 After y, Test at the 5% significance level if there is an improvement in the job performances of employees due to hypnosis. Assume that the population of paired differences is (approximately) normally distributed.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A company claims that the course it offers signifieantly increases the writing speed of secretaries. The following table gives the scores of 8 secretaries before and after they attended this course | 2.3 | 2.8 | 3.1 | 2.7 | 3.4 | 2.6 | 2.8 | 2.5 Before x, After y, 2.6 | 3.2 3.0 3.5 3.7 2.4 2.9 2.9 Test at the 5% significance level if there is an improvement in the job performances of employees due to hypnosis. Assume that the population of paired differences is (approximately) normally distributed.
Transcribed Image Text:A company claims that the course it offers signifieantly increases the writing speed of secretaries. The following table gives the scores of 8 secretaries before and after they attended this course | 2.3 | 2.8 | 3.1 | 2.7 | 3.4 | 2.6 | 2.8 | 2.5 Before x, After y, 2.6 | 3.2 3.0 3.5 3.7 2.4 2.9 2.9 Test at the 5% significance level if there is an improvement in the job performances of employees due to hypnosis. Assume that the population of paired differences is (approximately) normally distributed.
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