Week 7 statistics questions
aNSWER THE FOLLOWING STATISTICS QUESTIONS
QUESTION 1
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”
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QUESTION 2
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.
Shelia’s Z score can be interpreted as meaning:
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Sheila scored far above average on the test.
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Sheila scored far lower than average on the test.
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Sheila scored about average on the test. |
QUESTION 3
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 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”
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QUESTION 4
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 Z score to a standard IQ distribution with a mean of 100 and a standard deviation of 15.
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”
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