Is x the individual score or the mean?
If it is the score,
Z = (score-mean)/SD
If it is the mean,
Z = (score-mean)/SEm
SEm = SD/√n
The first is a distribution of scores and the second deals with the distribution of means.
assume the population of heights of female college students mean of 64.37 inches standard deviation of 6,26 in and random sample of 74 find p(x>65.25)B. find p(x>65.25)c. why is formulas required to solve a different than c.
1 answer
1 answer