Consider the following scenarios.I. A group of musicians count how many times they cansnap their fingers in 10 seconds with their dominanthands and with their nondominant hands. They willtest to see if musicians can snap faster with dominanthands than nondominant hands.II. A group of musicians is trying to measure theeffectiveness of practice time. Half of them practicea difficult piece of music for one hour each day whilethe other half practice two hours each day. After aweek, each musician plays the piece as a judge countsthe number of errors. They will test to see if morepractice results in fewer errors.Which are the proper choices for the hypothesis tests?A) Both scenarios require a 2-sample t-test.B) Both scenarios require a matched pairs t-test.C) Scenario I calls for a 2-sample t-test, and Scenario IIcalls for a matched pairs t-test.D) Scenario I calls for a matched pairs t-test, andScenario II calls for a 2-sample t-test.E) The proper tests cannot be determined until we seethe actual data that are collected.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Consider the following scenarios.
I. A group of musicians count how many times they can
snap their fingers in 10 seconds with their dominant
hands and with their nondominant hands. They will
test to see if musicians can snap faster with dominant
hands than nondominant hands.
II. A group of musicians is trying to measure the
effectiveness of practice time. Half of them practice
a difficult piece of music for one hour each day while
the other half practice two hours each day. After a
week, each musician plays the piece as a judge counts
the number of errors. They will test to see if more
practice results in fewer errors.
Which are the proper choices for the hypothesis tests?
A) Both scenarios require a 2-sample t-test.
B) Both scenarios require a matched pairs t-test.
C) Scenario I calls for a 2-sample t-test, and Scenario II
calls for a matched pairs t-test.
D) Scenario I calls for a matched pairs t-test, and
Scenario II calls for a 2-sample t-test.
E) The proper tests cannot be determined until we see
the actual data that are collected.

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