An instructor for a test preparation course claims that the course will improve the test scores of students. The table shows the critical reading scores for 14 students the first two times they took the test. Before taking the test for the second time, the students took the instructor's course to try to improve their critical reading test scores. At a = 0.01, is there enough evidence to support the instructor's claim? Complete parts (a) through (f). Student 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Score on first test 584 430 447 464 495 639 571 366 541 427 402 637 339 435 Score on second test 591 484 504 506 453 651 567 497 628 481 437 652 371 475 Let mu Subscript d be the hypothesized mean of the students' first score minus their second score. State Upper H 0 and Upper H Subscript a. Choose the correct answer below. A. Upper H 0: mu Subscript dequals0 Upper H Subscript a: mu Subscript dnot equals0 B. Upper H 0: mu Subscript dless than or equals0 Upper H Subscript a: mu Subscript dgreater than0 C. Upper H 0: mu Subscript dgreater than or equalsd overbar Upper H Subscript a: mu Subscript dless thand overbar D. Upper H 0: mu Subscript dgreater than or equals0 Upper H Subscript a: mu Subscript dless than0 E. Upper H 0: mu Subscript dless than or equalsd overbar Upper H Subscript a: mu Subscript dgreater thand overbar F. Upper H 0: mu Subscript dnot equals0 Upper H Subscript a: mu Subscript dequals0