Question 3A company wanted to know if attending a course on “how to be a successful salesperson" can increasethe average sales of its employees. The company sent six of its salespersons to attend this course. Thefollowing table gives the 1-week sales of these salespersons before and after they attended this course.Using the 1% significance level, can you conclude that the mean weekly sales for all salespersonsincrease as a result of attending this course? Assume that the population of paired differences has anormal distributionSalespersonWeekly sales Before attending courseAfter attending course451218251416182424141920

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Answered: A company wanted to know if attending a…

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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Part 2. Complete the following statements. A) The cumulative enrolment is the enrolment of the intervals smaller than the interval in question or equal to the latter. The graph of cumulative enrolment is represented by a function in B) The average, median and mode are three measures of of the C) The term refers to any data that deviates disproportionately from others. D) When the residual values are zero, then the correlation is called
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Used car auctions give car dealers an opportunity to increase their used car inventory by purchasing cars used as rental cars, assigned to company executives, and other similar activities. Suppose population 1 is all black cars sold at used car auctions, and population 2 is all white cars sold at used car auctions. Of interest is to estimate the difference in the mean sale price of all black cars sold at used car auctions and the mean sale price of all white cars sold at used car auctions. Based on this, using both the appropriate symbol and in words, state the one parameter of interest.

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