40. How does the t-model compare to the Normal model for various sample sizes? a. As the sample size decreases, the t-model comes closer to approximative a Normal model. b. The larger sample sizes increase the variation so the t-model and Normal model become more similar. c. As the sample size increases, the t-model comes closer to approximationg a Normal model. d. The difference between the two is the degrees of freedom. 41. It is expected that a quarter of the responses to the question "Do you enjoy being a parent?" will be "unsure" and there will be twice as many "yes" as "no" responses. Find the expected distribution for 86 responses. a. Yes: 0.5; No: 0.25; Not Sure: 0.25 b. Yes: 42; No: 22; Not Sure: 22 c. Yes: 50%; No: 25%; Not Sure: 25% d. Yes: 43; No: 21.5; Not Sure: 21.5 Use the following information to answer questions 42 - 44. Here are the weights in ounces of a random sample of 25 oranges harvested at Sunny Day Orchards this season 12.6 10.0 11.4 13.6 12.8 8.0 9.7 10.1 9.5 7.1 9.0 9.3 6.5 15.9 7.4 14.1 5.1 8.8 4.9 8.1 10.8 7.5 4.6 10.1 10.2 42. Find the standard error for this sample. a. 0.5641 b. 0.9843 c. 0.5455 d. 0.5758 43. What is the margin of error? a. 1.1885 b. 2.0316 c. 1.1643 d. 1.126 Unit 5 Evaluation 429 MTHH 041 44. Find the 95% confidence interval. a. (8.2956, 10,673) b. (7.4524, 11.5156) c. (8.3197, 10.6483) d. (8.358, 10.61) 45. Interpret the confidence interval (7.569, 9.325) for another sample from Blue Stem Orchards, a neighboring orchard. a. 95% of all oranges from Blue Stem Orchards weigh between 7.569 ounces and 9.325 ounces. b. I am 95% confident that the mean weight of an orange from Blue Stem Orchards this season is between 7.569 ounces and 9.325 ounces. c. I am 95% confident that a randomly selected orange from Blue Stem Orchards this season is between 7.569 ounces and 9.325 ounces. d. 95% of all samples from Blue Stem Orchards will have mean weight between 7.569 ounces and 9.325 ounces