Strike two Remember the Little League instructionalvideo discussed in Chapter 24? Ads claimed it wouldimprove the performances of Little League pitchers. Totest this claim, 20 Little Leaguers threw 50 pitches each,and we recorded the number of strikes. After the playersparticipated in the training program, we repeated the test.The table shows the number of strikes each player threwbefore and after the training. A test of paired differencesfailed to show that this training improves ability to throwstrikes. Is there any evidence that the effectiveness of the video (After – Before) depends on the player’s initial abil-ity to throw strikes (Before)? Test an appropriate hypoth-esis and state your conclusion. Propose an explanation for what you find. Number of Strikes (out of 50)Before After Before After28 35 33 3329 36 33 3530 32 34 3232 28 34 3032 30 34 3332 31 35 3432 32 36 3732 34 36 3332 35 37 3533 36 37 32
Strike two Remember the Little League instructionalvideo discussed in Chapter 24? Ads claimed it wouldimprove the performances of Little League pitchers. Totest this claim, 20 Little Leaguers threw 50 pitches each,and we recorded the number of strikes. After the playersparticipated in the training program, we repeated the test.The table shows the number of strikes each player threwbefore and after the training. A test of paired differencesfailed to show that this training improves ability to throwstrikes. Is there any evidence that the effectiveness of the video (After – Before) depends on the player’s initial abil-ity to throw strikes (Before)? Test an appropriate hypoth-esis and state your conclusion. Propose an explanation for what you find. Number of Strikes (out of 50)Before After Before After28 35 33 3329 36 33 3530 32 34 3232 28 34 3032 30 34 3332 31 35 3432 32 36 3732 34 36 3332 35 37 3533 36 37 32
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Topic Video
Question
Strike two Remember the Little League instructional
video discussed in Chapter 24? Ads claimed it would
improve the performances of Little League pitchers. To
test this claim, 20 Little Leaguers threw 50 pitches each,
and we recorded the number of strikes. After the players
participated in the training program, we repeated the test.
The table shows the number of strikes each player threw
before and after the training. A test of paired differences
failed to show that this training improves ability to throw
strikes. Is there any evidence that the effectiveness of the
video discussed in Chapter 24? Ads claimed it would
improve the performances of Little League pitchers. To
test this claim, 20 Little Leaguers threw 50 pitches each,
and we recorded the number of strikes. After the players
participated in the training program, we repeated the test.
The table shows the number of strikes each player threw
before and after the training. A test of paired differences
failed to show that this training improves ability to throw
strikes. Is there any evidence that the effectiveness of the
video (After – Before) depends on the player’s initial abil-
ity to throw strikes (Before)? Test an appropriate hypoth-
esis and state your conclusion. Propose an explanation
ity to throw strikes (Before)? Test an appropriate hypoth-
esis and state your conclusion. Propose an explanation
for what you find.
Number of Strikes (out of 50)
Before After Before After
28 35 33 33
29 36 33 35
30 32 34 32
32 28 34 30
32 30 34 33
32 31 35 34
32 32 36 37
32 34 36 33
32 35 37 35
33 36 37 32
Before After Before After
28 35 33 33
29 36 33 35
30 32 34 32
32 28 34 30
32 30 34 33
32 31 35 34
32 32 36 37
32 34 36 33
32 35 37 35
33 36 37 32
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