Are your customers special? In particular, is their interest level in your promotional newsletter higher than for

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Are your customers special? In particular, is their interest level in your promotional newsletter higher than for potential customers (who are not currently customers)? Justify your answer by reporting the chi-squared statistic and its degrees of freedom for the data set reported in Table 17.4.8 based on a random sample for each group. 

TABLE 17.4.8 Newsletter Interest Level for Customers and Potential Customers Customer Potential Customer Very interested

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