Using this formula, with the STS you got for part b, find: d. d. f. estimate: e. P - value:

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ISBN:9781119256830
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Chapter1: Starting With Matlab
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Maps
Question 11
When doing a T-Test to compare two population means with unknown population standard deviations, the
formula for finding the Degrees of Freedom is pretty messy:
(-)
() --(4)
d. f. =
2.
1
n1-1
You can compute this by hand, or just do the 2-SampTTest on a calculator and select "No" after the Pooled?
prompt.
Consider the random ´sample data in this table:
Рор
24
107
10
29
120
12
Use a calculator to find the following for a two tailed test. Round all answers to three decimals.
or
a. d. f. : 50.99
b. T: 4.30
c. P – value : .0000
You can also use a "simpler" estimation for Degrees of Freedom: d. f. = smaller sample size - 1
%3D
Using this formula, with the STS you got for part b, find:
d. d. f. estimate:
e. P - value :
Transcribed Image Text:New Tab nstructure.com/courses/2177802/assignments/13744575 Maps Question 11 When doing a T-Test to compare two population means with unknown population standard deviations, the formula for finding the Degrees of Freedom is pretty messy: (-) () --(4) d. f. = 2. 1 n1-1 You can compute this by hand, or just do the 2-SampTTest on a calculator and select "No" after the Pooled? prompt. Consider the random ´sample data in this table: Рор 24 107 10 29 120 12 Use a calculator to find the following for a two tailed test. Round all answers to three decimals. or a. d. f. : 50.99 b. T: 4.30 c. P – value : .0000 You can also use a "simpler" estimation for Degrees of Freedom: d. f. = smaller sample size - 1 %3D Using this formula, with the STS you got for part b, find: d. d. f. estimate: e. P - value :
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