The reaction times for a random sample of 9 subjects to a stimulant were recorded...
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The reaction times for a random sample of 9 subjects to a stimulant were recorded as shown below 2 3 2 7 3 8 2 1 2 8 2 2 3 1 3 7 4 3 Calculate a the range 1 b the variance using the formula of form s n 1 n x x 1 1 a R 2 2 Type an integer or a decimal Do not round b s Round to two decimal places as needed 27
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