a. state the null and alternative hypothesis b. calculate test statistic c. what are the df? what is/ are the critical values? A psychiatrist wants to test a drug claimed to decrease anxiety episodes in depressedpatients. A group of n = 50 subjects participates in her program and their anxietyepisodes are counted. The sample produces M = 22.78, s 5.63. It is known thatthe population value for this measure is m 25. Test the hypothesis that theprogram decreases anxiety episodes. Test with a = .01.%D%3D

a) From the given information, Sample size n =50 the Sample mean, M=22.78 the Sample standard…

Answered: a. state the null and alternative…

a. state the null and alternative hypothesis b. calculate test statistic c. what are the df? what is/ are the critical values?

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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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

a. state the null and alternative hypothesis

b. calculate test statistic

c. what are the df? what is/ are the critical values?

A psychiatrist wants to test a drug claimed to decrease anxiety episodes in depressed
patients. A group of n = 50 subjects participates in her program and their anxiety
episodes are counted. The sample produces M = 22.78, s 5.63. It is known that
the population value for this measure is m 25. Test the hypothesis that the
program decreases anxiety episodes. Test with a = .01.
%D
%3D

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