Doctors are interested in seeing what type of arch support helps the most to all

Question

Doctors are interested in seeing what type of arch support helps the most to alleviate foot pain. Twenty five volunteers are asked to wear one type of arch support one week and rank their level of pain on a scale from one to ten. The next week, they wear another type of arch support and once again rank their pain.The type of arch support that each participant used the first week was randomly selected from the two types. Which arch support is better?

A) comparing proportions from dependent samples

B) comparing proportions from 2 independent samples

C) one proportion

D) comparing means from two independent samples

E) comparing means from dependent samples

F) one mean

Explanation / Answer

Ans:E) comparing means from dependent samples (since the same sample is used for two weeks)

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