1. (10 points) A researcher claims that the average number of grams of carbohydrates contained in 1-ounce servings of nonchocolate candies is greater than that of chocolate candies. The number of grams of carbohydrates contained in 1-ounce servings of randomly selected chocolate and nonchocolate candies is listed in the data set Candies. a) [1] Which test statistic should be used in this study? Briefly explain. b) [1] Formulate the hypotheses to test the researcher's claim. c) [1] Calculate the appropriate test statistic.d) [4] Make the decision according to the critical value approach and and write your conclusion in the context of the problem. e) [3] Construct an 90% confidence interval for the parameter of interest and interpret the confidence intervals.