An electronics retailer would like to investigate the relationship between the selling price of a digital camera and the demand for it. The table shown below gives the weekly demand for the camera in one particular market along with the corresponding price. These data have a sample correlation coefficient, rounded to three decimal places, of negative 0.888. Using alpha equals 0.10, test if the population correlation coefficient between the selling price and the demand for the camera is less than zero.
What is the test statistic?
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