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? New customer Returning customer Total Observed Sample of Customers Paid search Social media Web retargeting 149 170 319 144 162 306 169 141 310 Total 462 473 935 Copy Data Step 2 of 4: Calculate the expected value for the number of sales generated by the social media strategy for returning customers. Round your answer to six decimal places.