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 320 337 457 411 359 506 483 616 426 361 452 430 559 455 Score on second test 329 350 467 425 294 556 4 19 640 437 379 465 458 575 504 (a) Identify the claim and state Ho and Ha The claim is "The students' critical reading test scores the second time they took the test." Let ud be the hypothesized mean of the students' first score minus their second score. State Ho and Ha. Choose the correct answer below. OA. Ho: Hd 2d OB. Ho: Hd = 0 OC. Ho: Hd SO Hai Hd 0 OD. Ho: Ha Sd OE. HO: Hd #0 OF. HO: Hd 20 Ha Ha > d Ha : Hd = 0 Hai Hd 3.012 O B. t 2.650 O C. t> 3.012 OD. t