To evaluate the effect of a treatment , a sample of n=9 is obtained from a population with a mean of m=40 and the treatment is administered to the individuals is found to be M-33
B: If the sample standard deviation is s=15,are the data sufficient effect to conclude that the treatment has a significant effect using a two tailed effect with a level of significants of =0.5
C: Comparing your answers for parts a and b,how does the variability of the score in the sample influence the out come of the test hypothesis© BrainMass Inc. brainmass.com June 4, 2020, 12:15 am ad1c9bdddf
So our formula to test for significance is: our score-sample mean / standard error
Null hypothesis: The treatment is = 33
Alternative hypothesis: The treatment is different then 33
Standard error = standard deviation / square root of sample size
= 9/3 = 3
z = 33-40/3 = -7/3 = ...
The expert evaluates the effect of a treatment in population with a mean is examined.