# ACC 543 Exercise 19-24a

Topics: Statistics, Standard deviation, Standard score Pages: 8 (504 words) Published: October 27, 2014

This pack contains ACC 543 Exercise 19-24a
Psychology - Psychological Statistics

Raw score

Z score

68.0

?

?

–1.6

82.0

?

?

1.8

69.0

?

?

–0.5

85.0

?

?

1.7

72.0

?

3.  Questions 3a through 3d are based on a distribution of scores with  and the standard Draw a small picture to help you see what is required.

a.  What is the probability of a score falling between a raw score of 70 and 80?

b.  What is the probability of a score falling above a raw score of 80?

c.  What is the probability of a score falling between a raw score of 81 and 83?

d.  What is the probability of a score falling below a raw score of 63?

4.  Jake needs to score in the top 10% in order to earn a physical fitness certificate. The class mean is 78 and the standard deviation is 5.5. What raw score does he need?

5.  Who is the better student, relative to his or her classmates? Use the following table for information.

Math

Class mean

81

Class standard deviation

2

Class mean

87

Class standard deviation

10

Raw scores

Math score

Average

Noah

85

88

86.5

Talya

87

81

84

Z- scores

Math score

Average

Noah

...

Respect your biological clock! If morning is simply not your time of day, don't schedule classes at the crack of dawn. You will have a terrible time getting there, and you will not be at your best. Schedule classes for a time of day when you can reliably get there rested, refreshed and ready to do your best work. In this way, you will make the most of your college dollar and get the very best education. Psychology - Psychological Statistics

Raw score

Z score

68.0

?

?

–1.6

82.0

?

?

1.8

69.0

?

?

–0.5

85.0

?

?

1.7

72.0

?

3.  Questions 3a through 3d are based on a distribution of scores with  and the standard Draw a small picture to help you see what is required.

a.  What is the probability of a score falling between a raw score of 70 and 80?

b.  What is the probability of a score falling above a raw score of 80?

c.  What is the probability of a score falling between a raw score of 81 and 83?

d.  What is the probability of a score falling below a raw score of 63?

4.  Jake needs to score in the top 10% in order to earn a physical fitness certificate. The class mean is 78 and the standard deviation is 5.5. What raw score does he need?

5.  Who is the better student, relative to his or her classmates? Use the following table for information.

Math

Class mean

81

Class standard deviation

2

Class mean

87

Class standard deviation

10

Raw scores

Math score

Average

Noah

85

88...