An experiment was conducted to determine whether giving candy to dining parties resulted in greater tips. The mean tip percentages and standard deviations are given in the accompanying table along with the sample sizes. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b). . . . Question content area top right Part 1 mu n x overbar s No candy mu 1 23 18.73 1.55 Two candies mu 2 23 20.98 2.56 Question content area bottom Part 1 a. Use a 0.01 significance level to test the claim that giving candy does result in greater tips. What are the null and alternative hypotheses? A. Upper H 0: mu 1not equalsmu 2 Upper H 1: mu 1less thanmu 2 B. Upper H 0: mu 1equalsmu 2 Upper H 1: mu 1not equalsmu 2 C. Upper H 0: mu 1equalsmu 2 Upper H 1: mu 1less thanmu 2 Your answer is correct.D. Upper H 0: mu 1equalsmu 2 Upper H 1: mu 1greater thanmu 2 Part 2 The test statistic, t, is enter your response here. (Round to two decimal places as needed.)