In 2009 Noodles & Company introduced spaghetti and meatballs to its menu. Before putting it on the menu, it performed taste tests to determine the best-tasting spaghetti sauce. In a paired comparison, 76 tasters were asked to rate their satisfaction with two different sauces on a scale of 110, with 10 being the highest. Assume equal population variances. The mean difference in ratings was dd = -0.42208 with a standard deviation of s_d = 1.31720. Use = 0.05.

In 2009 Noodles &Company introduced spaghetti and meatballs to its menu. Before putting it on the menu, it performed taste tests to determine the best-tasting spaghetti sauce. In a paired comparison, 76 tasters were asked to rate their satisfaction with two different sauces on a scale of 1-10, with 10 being the highest. Assume equal population variances. The mean difference in ratings was d -0.42208 with a standard deviation of sd-131720. Use : 0.05. (a) Choose the appropriate hypotheses for a two-tailed test. Assume Ha is the average difference in the taste of the two sauces. HO-Ha 2 O versus H: Ha O (b) Find the test statistic tcalc. (Round your answer to 3 decimal places. A negative value should be indicated by a minus sign.) cale (c) Find the critical value trit for -05. (Round your answer to 3 decimal places.) erit (d) Find the p-value. (Round your answer to 3 decimal places.) p-value (e) State your conclusion We (Click to select conclude that there is a difference in the taste of the two sauces