REPORTING AND THESIS WRITING
NULL HYPOTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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of the data is located ____ standard deviation(s) above the mean and ____ standard deviation(s) below the mean.
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one
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two
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zero
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three
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Explanation:
Detailed explanation-1: -Moving further out into the tails of the curve, a score 2 s.d. above the mean is equivalent to a little lower than the 98th percentile, and 2 s.d. below the mean is equivalent to a little higher than the 2nd percentile.
Detailed explanation-2: -So, the interval 3.1≤x≤7.0 is actually between one standard deviation below the mean and 2 standard deviations above the mean. In normally distributed data, about 34% of the values lie between the mean and one standard deviation below the mean, and 34% between the mean and one standard deviation above the mean.
There is 1 question to complete.