Is variance of sales before announcement of increasing price

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Reference no: EM13134925

The following data represent sales at dealerships of company before and after the company increases product price.

Before: 329 234 423 328 400 399 326 452 541 680 456 220
After : 212 630 276 112 872 788 345 544 110 129 776

Do you believe that the variance of sales before announcement of increasing price is equal to variance of sales after announcement?

Reference no: EM13134925

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