## (solution) a) If five people obtained scores of 0, 1, 2, 4, and 8 on a test

a) If five people obtained scores of 0, 1, 2, 4, and 8 on a test of social conformity, their mean score on the test was?

b)The mean for the population is 224 with a standard deviation of 35. Given a z score of 0.65, what is the raw score?

c)The distribution of means based on samples of size 45, pulled from a population distribution with a mean of 100 and a standard deviation of 15, would have a standard error of: ______?

d) What percentage of observations that fall between a z score of -1.47 and a z score of 1.11?

e) If a distribution of scores has a mean of 90 and a standard deviation of 10, then a score of 70 has a z score that is ________ standard deviation(s) ________ the mean.

f)As sample size _____, the spread of distribution of means _____.??

g)Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was well above the class average. The professor announced that the mean for the class final exam was 88 with a standard deviation of 7. Given Daniel?s z score of 1.67, what is the raw score for his exam grade?

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Sep 13, 2020

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