A sample of n=16 individuals is selected from a population with a mean (µ)= 80 and standard deviation () =8. A treatment is administered to the sample, and after the treatment, the sample mean (M)= 86. The researcher wants to know what effect, if any, the treatment had. Does the sample provide sufficient evidence to conclude that the treatment has a significant effect? Test using alpha ( αα)= .05.                  a. one-tailed or two-tailed test?                  b. H0:                      HA:                  c. alpha: z value=                  d. σM =                  e. test statistic: z-score=

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