What's the null and alternative hypothesis for this research question? What is the t-statistic value The table compares the number of occurrences before and after deep breathing exercises:- Before Deep Breathing: 22, 25, 15, 28, 13, 16, 15, 12- After Deep Breathing: 20, 19, 10, 12, 11, 8, 10, 9This data can be used to analyze the impact of deep breathing on the measured variable, showing a noticeable decrease in values after the exercises.

Given data: Before After 22 20 25 19 15 10 28 12 13 11 16 8 15 10 12 9

Answered: What's the null and alternative…

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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Answer the three questions below: You can't calculate the mean of a category variable like sex. How might you provide a summary/representative score for this variable in your sample?
How does changing from two-tailed test to one-tailed test increases power of a statistical test?
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THE CRITICAL VALUE FOR TWO TAILED TEST AT 5% LEVEL OF SIGNIFICANCE IS Your answer
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a. If a null hypothesis is rejected with a significance level of 0.05, is it also rejected with a significance level of 0.01? Why or why not? Suppose the level of significance for carrying out the test is lowered from 5% to 1%. As a result, has the likelihood of rejecting the null hypothesis when it is true increased or decreased? Explain

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