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A marketing firm wants to know if there is a difference in the best marketing strategy for new customers compared to returning customers. In order to determine the relationship between marketing strategy and customer type, the following information on number of sales generated is obtained for each group. Is there sufficient evidence at the 0.1 level of significance to conclude that an association exists between marketing strategy and customer type? Observed Sample of Customers Paid search Social media Web retargeting Total New customer 170 142 148 460 Returning customer 140 169 156 465 Total 310 311 304 925 Copy Data Step 3 of 4: Compute the value of the test statistic. Round your answer to three decimal places, if necessary. (Note: If calculating by hand, be sure to use at least six decimal places in numbers for all intermediate calculations to ensure accuracy of the result.)