Solid fats are more likely to raise blood cholesterol levels than liquid fats. Suppose a nutritionist analyzed the percentage of saturated fat for a sample of 6 brands of stick margarine (solid fat) and for a sample of 6 brands of liquid margarine and obtained the following results: Stick = [25.5, 26.7, 25.6, 26.3, 26.7, 26.1 ] Liquid = [16.6, 17.3, 16.9, 16.9, 17.2, 17.3] We want to determine if there a significant difference in the average amount of saturated fat in solid and liquid fats. What is the test statistic? (assume the population data is normally distributed) a) Oz= 37.765 b) Oz = 37.265 c) Ot = 37.265 d) Ot = 37.765 e) Ot = 24.951