Behavioral Statistics Quiz 4

X = 55

A distribution with u = 55 and o = 6 // What value will be obtained for a score of X = 58 from the original distribution?

o = 10

A population has u = 50. What value of 0 would make X = 55 a central, representative score in the population?

3

A population of scores has u = 80. In this population, a score of X = 86 corresponds to z = +2.00. What is the population standard deviation?

z = 1.50

A sample of n = 20 scores has a mean of M = 45 and a standard deviation of s = 8. In this sample, what is the z-score corresponding to X = 57?

M=48

A score that is 2 points higher than the sample mean has a z-score of z = 0.50, and a score of X = 44 has a z - score of - 1.00. What is the sample mean?

D. Mary, Sue, Bob

For an exam witha mean f M = 74 and a standard deviation of s = 8, Mary has a score of X = 80, Bob's score corresponds to z = +1.50, and Sue's score

52

For a population with u = 40 and o = 8, what is the X value corresponding to z = 1.50?

- 2.00

For the population with u = 80 and o = 6, what is the Z - SCORE corresponding to X = 68?

0;1

If an entire population with u = 60 and 0 = 8 is transformed into z = 8 is transformed into z - scores, then the distribution of z-scores will have a mean of ___ and a standard deviation of ____.

u = 42 and 0 =4

In a population of scoress, X = 44 corresponds to z = +0.50 and X = 50 corresponds to z = +2.00. What are the values for the population mean and standard deviation?

Math

Last week, Sarah had exams in math and in Spanish. On the math exam, the mean was u = 30, with o = 5, and Sarah had a score of X = 45...

z = -2.00

Which of the following Z- SCORE values represents the location farthest from the mean?