Week 7 statistics questions
Answer the following questions:
QUESTION 1

Sheila took a test and received a raw score of 86. The sample of scores has a mean of 78 and a standard deviation of 4.
Convert Sheila?s raw score into a Z score
Note: Enter only the numeral answer. Do not use decimals points for whole numbers such as “2”. Use decimal points for numbers that are not whole such as “2.5”
QUESTION 2

Sheila took a test and received a raw score of 86. The sample of scores has a mean of 78 and a standard deviation of 4.
Shelia’s Z score can be interpreted as meaning:
Sheila scored far above average on the test.
Sheila scored far lower than average on the test.
Sheila scored about average on the test
QUESTION 3

Sheila took a test and received a raw score of 86. The sample of scores has a mean of 78 and a standard deviation of 4.
Convert Sheila?s Z score into a T score with a mean of 50 and a standard deviation of 10?
Note: Enter only the numeral answer. Do not use decimals points for whole numbers such as “2”. Use decimal points for numbers that are not whole such as “2.5”
QUESTION 4

Sheila took a test and received a raw score of 86. The sample of scores has a mean of 78 and a standard deviation of 4.
Convert Sheila?s Z score to a standard IQ distribution with a mean of 100 and a standard deviation of 15.