Question

On a standardized anagram task (anagrams are sets of scrambled letters that can be arranged to form words e.g., ttass, rertor), people successfully completed an average of μ = 26 anagrams with σ = 4. A researcher would like to demonstrate that the arousal from anxiety is distracting and will decrease task performance. A sample of n = 14 anxiety-ridden subjects is tested on the task. The average number of anagrams solved is 23.36. Do the anxiety-ridden subjects show a decrease in task performance?

Answer 1