SaiBook.us Statistics

Lesson Example Discussion Quiz: Class Homework

Quiz At Home

Title: Standardized scores or z-scores

Grade: 9-a Lesson: S2-L4

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the five problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: at Home

Problem Id	Problem	Options
1	Find the z-score of 240.16,given \$\mu\$ = 180 and \$\sigma\$ = 69.?	A) 0.8 B) 2.8 C) 0.9 D) 3
2	Find the z-score of 18.37,given a distribution with a mean of 18 and standard deviation of 1.?	A) +1.2 B) -7.8 C) +3.4 D) -2.3
3	Find the value represented by a z-score of 1.2,given \$\mu\$ = 20 and \$\sigma\$ = 2.4.?	A) 33.6 B) 33.5 C) 22.88 D) 38.8
4	Find the z-score of 20,given a distribution with a mean of 45 and \$\sigma\$ = 4.?	A) -8.5 B) + 1.64 C) + 6 D) -6.25
5	Find the value represented by a z-score of 3.97, given \$\mu\$ = 15 and \$\sigma\$ = 2.45.?	A) +6.25 B) -2.72 C) -4.5 D) +8.63

Problem Id

Problem

Options

Find the z-score of 240.16,given \$\mu\$ = 180 and \$\sigma\$ = 69.?

A) 0.8
B) 2.8
C) 0.9
D) 3

Find the z-score of 18.37,given a distribution with a mean of 18 and standard deviation of 1.?

A) +1.2
B) -7.8
C) +3.4
D) -2.3

Find the value represented by a z-score of 1.2,given \$\mu\$ = 20 and \$\sigma\$ = 2.4.?

A) 33.6
B) 33.5
C) 22.88
D) 38.8

Find the z-score of 20,given a distribution with a mean of 45 and \$\sigma\$ = 4.?

A) -8.5
B) + 1.64
C) + 6
D) -6.25

Find the value represented by a z-score of 3.97, given \$\mu\$ = 15 and \$\sigma\$ = 2.45.?

A) +6.25
B) -2.72
C) -4.5
D) +8.63