14. A total of 12 participants were randomly assigned to one of three treatment groups:antidepressant medication ("drug"), weekly psychotherapy ("therapy”), or no treatment("control"). Depression scores were collected 8 weeks after treatment began. We want toknow how effective the depression treatments were (that is, do the mean depression scoresdiffer between groups?).DrugDrugDrugb) Determine what test to use.DrugTherapyTherapyTherapyTherapyControlControlControlControla) What are the null and alternative hypotheses?8914612715822251820c) Determine alpha, how many tails are there, what are the df and find a critical value.

The following data is given.…

Answered: 14. A total of 12 participants were…

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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Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires caused by humans in the west? 348 of the 574 randomly selected wildfires looked at in the south were caused by humans while 272 of the 518 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer Select an answer Select an answer (please enter a decimal) H₁: Select an answer Select an answer Select an answer (Please enter a decimal) = c. The test statistic ? ◊ your answer to 3 decimal places.) (please show
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