If you know that a distribution of scores is skewed, the best interpretation is that
a. a majority of the scores are below the sample mean.
b. a majority of the scores are above the sample mean.
c. a majority of the scores are either below or above the sample mean.
d. there are few outliers in the sample.
c
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Motor nerves control:
a. Muscles b. The brain c. The spinal cord d. The lungs
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Which of the following is not a step to locate a proportion in a normal distribution?
A. transform a raw score (x) into a z score B. locate the corresponding proportion for the z score in the unit normal table C. convert a proportion to a standard normal z score
The ______ of the test has to increase as the purpose becomes more summative.
a. age b. quality c. length d. research base