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A researcher would like to determine if relaxation training will affect the number of headaches for...

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Statistics

A researcher would like to determine if relaxation training willaffect the number of headaches for chronic headache sufferers. Fora week prior to training, each participant records the number ofheadaches suffered. Participants then receive relaxation trainingand for the week following training the number of headaches isagain measured. (18 points) The data are as follows: MD = 2.25, s =1.28

a)      What is the null hypothesisfor this experiment?

b)      What is the alternativehypothesis for this experiment?

c)      Calculate the appropriatetest statistic to test the hypothesis- show your work

d)      What is the critical value ifalpha is set to .05?

e)      What is the conclusion? Statein words whether we reject or fail to reject the null hypothesisand why.

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