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Elementary Statistics - 12 Edition - Chapter 13.2 - Problem 1bsc
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Solutions for Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola 9780321836960

Solution for problem 1BSC Chapter 13.2

Sign Test for Freshman 15The table below lists some of the

Elementary Statistics | 12th Edition


Problem 1BSC

Sign Test for Freshman 15?The table below lists some of the weights from Data Set 4 in Appendix B. Those weights were measured from college students in September and later in April of their freshman year. Assume that we plan to use the sign test to test the claim of no difference between September weights and April weights. What requirements must be satisfied for this test? Is there any requirement that the populations must have a normal distribution or any other specific distribution? In what sense is this sign test a “distribution-free test”?

Accepted Solution
Step-by-Step Solution:

Solution 1BSC Step 1 The weights were measured from college students in September and later in April of their freshman year. By assuming that we plan to use the sign test to test the claim of no difference between September weights and April weights. Here we need to check the requirements whether the sample data are collected according to simple random sampling where every unit of the population has an equal chance of being selected as a sample. Here the weight of the students are taken at random irrespective of their groups.

Chapter 13.2, Problem 1BSC is Solved

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Sign Test for Freshman 15The table below lists some of the