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Evaluate the effect of a treatment with two tailed test

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10) 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

A: If a sample has a standard deviation of s=9, are the data sufficient to conclude that the treatment has a significant effect using a two tailed test with a level of significants of 0.5?

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?

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