What type of test should you use (determine if a direction is predicted, and if the samples are independent or related to answer the question)? b) What are your degrees of freedom? c) What is the appropriate t-critical?
In a study to determine the impact of a pain management therapy in persons with chronic pain, 20 individuals experiencing chronic pain were randomly selected. Ten of these individuals were assigned to receive pain management therapy and the other 10 to receive no therapy.
Mean sample 1 = 62, n = 10, standard deviation 1 = 9.7
Mean sample 2 = 53, n = 10, standard deviation 2 = 6.4
Standard error of the difference = 3.675
a) What type of test should you use (determine if a direction is predicted, and if the samples are independent or related to answer the question)?
b) What are your degrees of freedom?
c) What is the appropriate t-critical?
d) Conduct the appropriate t-test - determine what is t-obtained and compare it with t-critical for the test (look carefully at the information already given to you to avoid doing calculation you do not need to do):
e) What do you conclude about the null hypothesis?
f) State your conclusion as you would share it with a reporter (statements using the actual variables you are using, explaining if there is or isn't a relationship between variables, and if there is, what does that relationship look like):
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