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The standard deviation of test

On a standardized test, Phyllis scored 84, exactly one standard deviation about the mean. If the standard deviation for the test
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2. asked by Tanyetta
3. 3,258 views
Scores of an IQ test are normally distributed. A sample of 25 IQ scores had standard deviation s= 8. The developer of the test
1. 5 answers
2. 92 views
Scores on an IQ test are normally distributed. A sample of 15 IQ scores had standard deviation s=10. The developer of the test
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2. asked by steph
3. 894 views
Question: Between test 1 (score of 230 and mean of 210 and standard deviation of 22) and test 2 (score of 80 and mean of 70 and
1. 3 answers
2. asked by tryingtosecurethebag
3. 627 views
In a particular year, the mean score on the ACT test was 22.4 and the standard deviation was 4.6. The mean score on the SAT
1. 7 answers
2. 26 views
What happens if standard deviation of a Biology test is greater than the standard deviation of a Chemistry test? Which test was
1. 1 answer
2. 15 views
the correlation between two tests given to 100 students in the junior clas is .70 the mean for the first test was 125 with
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2. asked by Anonymous
3. 1,014 views
In a recent study on gender differences in education, a sample of 7 boys had a mean score of 18.5 and a standard deviation of
1. 1 answer
2. asked by Alex
3. 528 views
Suppose a test of musical ability has a normal distribution with a mean of 50 and a standard deviation of 5. Approximately what
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2. asked by Amanda
3. 551 views
it is stated that the standard deviation sample of the is 7.6 (n = 26). Test the claim to a significance level of 0.10 that the
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2. asked by geety
3. 476 views