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Suppose that a marketing manager is studying sales data for products that are not available in...

Suppose that a marketing manager is studying sales data for products that are not available in stores and are only sold online. She collects the following weekly sales data for 12 12 products not sold in stores. Assume the population standard deviation for these data is $5600 $ 5600 . Weekly Sales Figures Product Weekly Sales ($) 1 26,313 26,313 2 18,955 18,955 3 17,061 17,061 4 15,249 15,249 5 27,220 27,220 6 19,903 19,903 7 23,534 23,534 8 15,228 15,228 9 25,889 25,889 10 26,131 26,131 11 28,533 28,533 12 20,577 20,577 Step 1 of 2 : Find the value o f the chi-square statistic for these data. Round your answer to three decimal places, if necessary.

math   Statistics-And-Probability   
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Answer #1

The statistical software output for this problem is:

One sample variance hypothesis test: O: Variance of variable H:02 = 31360000 H:0=31360000 Hypothesis test results: Variable S

From above output:

Chi square statistic = 8.118

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