a shoe company wants to determine if the new ...
a shoe company wants to determine if the new tread on its top - line of running shoes lasts longer than the original tread. the company recruits 50 runners for a study. each runner will perform their typical workout wearing one shoe with the original tread and another shoe with the new tread on the other foot. the shoe with the new tread will be decided by flipping a coin. after one month, the runner will wear the new type of tread on the opposite foot. at the end of the second month, the difference in tread wear (new - original) will be calculated. what type of sampling is described in this study? one sample paired data two samples more than two samples
Answer
# Explanation:
## Step1: Understand sampling types
One - sample sampling involves data from a single group. Paired - data sampling is when observations are paired, often for the same subject under different conditions. Two - samples sampling is for two independent groups.
## Step2: Analyze the scenario
Here, each runner wears two types of shoes (original and new) and the tread wear on the opposite feet is compared. The data for each runner is paired (tread wear of original shoe on one foot and new shoe on the other foot for the same runner).
# Answer:
paired data samples