can someone please help i have no idea how to do this????

Suppose thata marketing manager is studying sales dats for products that are not avaliable in stores and are only sold online. She coliects the following weekly sales data for I I products not sold in stores. Assume the population standard devitian for these dlata it $5400 Step 1 of 2: Find the value of the chi-square statistic for these data. Round your answer to three decimal places, if necessary