2. This is a O twoO leftO right tailed test and the distribution used is OT OZ The Degrees of Freedom are 0 8 0 7 ON/A; this is a Z-test 3. The STS (round to 3 decimals) is: The P-value (round to 4 decimals) is:
2. This is a O twoO leftO right tailed test and the distribution used is OT OZ The Degrees of Freedom are 0 8 0 7 ON/A; this is a Z-test 3. The STS (round to 3 decimals) is: The P-value (round to 4 decimals) is:
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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Transcribed Image Text:2. This is a O twoO leftO right tailed test and the distribution used is
OT
Oz
The Degrees of Freedom are
8
7
ON/A; this is a Z-test
9
3. The STS (round to 3 decimals) is:
The P-value (round to 4 decimals) is:

Transcribed Image Text:To examine the linear correlation between work experience and salary, data was collected from employees
at a company. See the table below.
Years of
Salary
Experience ($1000's)
4
42
5
46
51
12
50
14
50
15
54
17
56
21
64
22
58
Does this result suggest that the correlation is statistically significant? Use a = 0.10.
Important Note: Round your value for r to three decimals before computing the STS. DO NOT use the built-
in LinRegTTest on a calculator because you might get marked wrong. When computing the P-value, use the
rounded STS.
1. Select the correct statement:
O lf the correlation is found to be statistically significant, that means that changes in æ cause changes
in y
O Even if the correlation is found to be statistically significant, that does not necessarily mean that
changes in x cause changes in y
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