A learn-to-type software program claims that it can improve your typing skills. To test the claim and possibly help yourself out, you and five of your friends decide to try the program and see what happens. Use the table below to construct an 80% confidence interval for the true mean change in the typing speeds for people who have completed the typing program. Let Population 1 be the typing speed before taking the program and Population 2 be the typing speed after taking the program. Round the endpoints of the interval to one decimal place, if necessary. Typing Speeds (in Words per Minute) Before After 38 54 34 44 53 50 31 51 55 35 54 45
A learn-to-type software program claims that it can improve your typing skills. To test the claim and possibly help yourself out, you and five of your friends decide to try the program and see what happens. Use the table below to construct an 80% confidence interval for the true mean change in the typing speeds for people who have completed the typing program. Let Population 1 be the typing speed before taking the program and Population 2 be the typing speed after taking the program. Round the endpoints of the interval to one decimal place, if necessary. Typing Speeds (in Words per Minute) Before After 38 54 34 44 53 50 31 51 55 35 54 45
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Lower end point:
Uppe end point:
Transcribed Image Text:A learn-to-type software program claims that it can improve your typing skills. To test the claim and
possibly help yourself out, you and five of your friends decide to try the program and see what
happens. Use the table below to construct an
80% confidence interval for the true mean change in the typing speeds for people who have
completed the typing program. Let Population 1 be the typing speed before taking the program and
Population 2 be the typing speed after taking the program. Round the endpoints of the interval to one
decimal place, if necessary.
Typing Speeds
(in Words per
Minute)
Before After
38
54
34
44
53
31
55
54
50
51
35
45
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