Question 8 Utilize the appropriate t test technique to complete the following. The Eastern Publishing Company hires college students to sell books during the summer. The company wants to determine if there is a significant difference in sales between those individuals who participated in the sales program and those that did not. A company representative randomly selects a group of salespeople from the normally distributed population of book sales, records the number of sales for each person during the past summer, and indicates whether the salesperson participated in the new training program. Test at .01 level of significance. *Set up hypothesis as one tailed to the right. = 482 books s1 = 43 books n1 = 20 (training) = 465 books s2 = 39 books n2 = 22 (no training) Stated Hypothesis HO: Training - μ No Training ≤ 0 H1: Training - μ No Training >0 Of the following, what is the best estimation of pooled standard deviation? a) 46.2472 b) 482.00 c) 1521.00 d) 40.9487 e) 1676.79

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
Question
Question 8
Utilize the appropriate t test technique to complete the following.
The Eastern Publishing Company hires college students to sell books during the summer. The
company wants to determine if there is a significant difference in sales between those
individuals who participated in the sales program and those that did not. A company
representative randomly selects a group of salespeople from the normally distributed
population of book sales, records the number of sales for each person during the past
summer, and indicates whether the salesperson participated in the new training program. Test
at .01 level of significance. *Set up hypothesis as one tailed to the right.
= 482 books s1 = 43 books n1 = 20 (training)
= 465 books s2 = 39 books n2 = 22 (no training)
Stated Hypothesis
HO: Training - μ No Training ≤ 0
H1: Training - μ No Training >0
Of the following, what is the best estimation of pooled standard deviation?
a) 46.2472
b) 482.00
c) 1521.00
d) 40.9487
e) 1676.79
Transcribed Image Text:Question 8 Utilize the appropriate t test technique to complete the following. The Eastern Publishing Company hires college students to sell books during the summer. The company wants to determine if there is a significant difference in sales between those individuals who participated in the sales program and those that did not. A company representative randomly selects a group of salespeople from the normally distributed population of book sales, records the number of sales for each person during the past summer, and indicates whether the salesperson participated in the new training program. Test at .01 level of significance. *Set up hypothesis as one tailed to the right. = 482 books s1 = 43 books n1 = 20 (training) = 465 books s2 = 39 books n2 = 22 (no training) Stated Hypothesis HO: Training - μ No Training ≤ 0 H1: Training - μ No Training >0 Of the following, what is the best estimation of pooled standard deviation? a) 46.2472 b) 482.00 c) 1521.00 d) 40.9487 e) 1676.79
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