Open Question: A market trader trading on a holiday weekend looks at his sales figures for Friday, Saturday & Sunday, namely?

A market trader trading on a holiday weekend looks at his sales figures for Friday, Saturday & Sunday, namely {98, 65, 121}. He wants to test if his sales differ on each day or not. Assuming H0: sales are the same each day and H1: sales differ, which of the following is true? Chisquared Test Statistic = 9.36; don't reject H0 Chisquared Test Statistic = 19.35; reject H0 Chisquared Test Statistic = 16.76; reject H0 Chisquared Test Statistic = 5.36; don't reject H0