please help i am stuck

(5 points) A study is conducted to determine if a newly designed text book is more helpful to learning the material than the old edition. The mean score on the final exam for a course using the old edition is 75. Ten randomly selected people who used the new text take the final exam. Their scores are shown in the table below. Person ABCDEFGH | J Test Score85 73 81 90 72 897868 96 93 Use a 0.05 significance level to test the claim that people do better with the new edition. Assume the standard deviation is 10.1. (a) What kind of test should be used? A. Two-Tailed B. One-Tailed C. It does not matter. (b) The one-sample z-test statistic is (rounded to 2 decimals). (c) The P-value is (d) Is there sufficient evidence to support the claim that people do better than 75 on this exam? '\"A.Yes \"'B.No (e) Construct a 95 % confidence interval for the mean score for students using the new text.