Attempts: 7. Calculatin Consider a data set containing the following values: Ave

Question

Attempts: 7. Calculatin Consider a data set containing the following values: Average: 16 g standard deviation and variance using the computational formula 67 94 82 80 97 99 78 91 The mean of the given values is 86. The squares of the scores have been calculated as follows: 4,489 8,836 6,724 6,400 9,409 9,801 6,084 8,281 (Hint: Remember that the phrase If the preceding scores are sample data, the sum of squares (SS) is sum of squares" or SS refers to the sum of squared deviations.) If the preceding scores are population data, the ss is

Explanation / Answer

for sample data sum of square is SS =X2 -(X)2/n =856

for population data sum of square is SS =X2 -(X)2/n =856

sample std deviation =(SS/(n-1))1/2 =11.06

population std deviaiton =(SS/(n))1/2 =10.34

S.No X1 X12 1 67.00 4489.0000 2 94.00 8836.0000 3 82.00 6724.0000 4 80.00 6400.0000 5 97.00 9409.0000 6 99.00 9801.0000 7 78.00 6084.0000 8 91.00 8281.0000 X 688 X2 60024.0000

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