Determine whether it can be concluded that the company's average sales are higher after training
Determine whether it can be concluded that the company's average sales are higher after training
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.1: Real Numbers
Problem 50E
Related questions
Question
The head of company A wants to know the effectiveness of sales training. Then, sales samples were taken (in thousands) before and after the training as shown in the following table.
1. Determine whether it can be concluded that the company's average sales are higher after training?
2. Significant level 5% (α = 0.05)
Transcribed Image Text:Number Before
After
1
260
250
2
245
250
300
300
4
230
235
225
230
275
265
7
400
390
8
250
245
9.
275
280
10
280
290
11
290
300
12
300
320
3.
Expert Solution
Step 1
Null Hypothesis: The mean effectiveness before and after training is equal
Alternative Hypothesis: The mean effectiveness before and after training is not equal.
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