I want to assess whether or not students produce more stress hormones (cortisol) after watching different types of movies. I collect saliva samples (to assess cortisol, stress) from students after they watch an action movie and then another (two days later) after they watch a horror movie. The amount of stress hormone in the saliva is measured as ng/mL.Test the hypothesis that saliva cortisol levels will be different between the two genres of movies at an alpha of 0.05. (Have action - horror be set for your differences). Data:Action MovieHorror Movie 1012-21518-31617-12021-12422224231262711316-31820-21923-42015524251What are your degrees of freedom? What is the critical t value (from t table)? What is the mean of difference values? Bb Homework and Submission...Untitled document Google...What is the difference betwcess Confirmation of Qu...titled documentA ShareEdit View Insert Format Tools Add-ons HelpLast edit was second...A PNormal textTimes New.....%00%6.3.9.I want to assess whether or not students produce more stress hormones (cortisol) after watching different types of movies. Icollect saliva samples (to assess cortisol, stress) from students after they watch an action movie and then another (two days later)after they watch a horror movie. The amount of stress hormone in the saliva is measured as ng/mL.Test the hypothesis that salivacortisol levels will be different between the two genres of movies at an alpha of 0.05. (Have action - horror be set for yourdifferences).Data:Action MovieHorror Movie12-21518-3912021-124222423.262713-3911820-223-46120155.24251.c. What are your degrees of freedom?d. What is the critical t value (from t table)?e. What is the mean of difference values?

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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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I want to assess whether or not students produce more stress hormones (cortisol) after watching different types of movies. I collect saliva samples (to assess cortisol, stress) from students after they watch an action movie and then another (two days later) after they watch a horror movie. The amount of stress hormone in the saliva is measured as ng/mL.Test the hypothesis that saliva cortisol levels will be different between the two genres of movies at an alpha of 0.05. (Have action - horror be set for your differences).

Data:

Action Movie	Horror Movie
10	12	-2
15	18	-3
16	17	-1
20	21	-1
24	22	2
24	23	1
26	27	1
13	16	-3
18	20	-2
19	23	-4
20	15	5
24	25	1

What are your degrees of freedom?

What is the critical t value (from t table)?

What is the mean of difference values?

Bb Homework and Submission...
Untitled document Google...
What is the difference betw
cess Confirmation of Qu...
titled document
A Share
Edit View Insert Format Tools Add-ons Help
Last edit was second...
A P
Normal text
Times New...
..
%00%
6.
3.
9.
I want to assess whether or not students produce more stress hormones (cortisol) after watching different types of movies. I
collect saliva samples (to assess cortisol, stress) from students after they watch an action movie and then another (two days later)
after they watch a horror movie. The amount of stress hormone in the saliva is measured as ng/mL.Test the hypothesis that saliva
cortisol levels will be different between the two genres of movies at an alpha of 0.05. (Have action - horror be set for your
differences).
Data:
Action Movie
Horror Movie
12
-2
15
18
-3
91
20
21
-1
24
22
24
23.
26
27
13
-3
91
18
20
-2
23
-4
61
20
15
5.
24
25
1.
c. What are your degrees of freedom?
d. What is the critical t value (from t table)?
e. What is the mean of difference values?

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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