question archive ou want to study whether caffeine is associated with increased exercise time
ou want to study whether caffeine is associated with increased exercise time
Subject:StatisticsPrice: Bought3
ou want to study whether caffeine is associated with increased exercise time. You sample 124 physical therapists, speech and language therapists, and nurses from 4 different hospitals in South Dakota. You create 60 minute exercise routine for all subjects to follow, allow all subjects 114 mg of caffeine 15 minutes before exercising, and measure how many minutes of the 60 minute workout are completed. You set alpha at 0.05 and your p-value is 0.043. Which of the following statements is true?
A.your study is statistically significant, the Z-value is greater than 2, and there is a 5% chance that you made a type I error
B.your study is statistically significant, the Z-value is 0, and there is a 10% chance that you made a type I error
C.your study is not statistically significant, the Z-value is between 1 and 2, and there is a 5% chance that you made a type I error
D.your study is statistically significant, the Z-value is greater than 2, and there is a 5% chance you made a type II error
