A Psychologist Is Interested in Whether Working Memory Is Influenced

Multiple Choice

A psychologist is interested in whether working memory is influenced by sleep loss.The psychologist administers a measure of working memory to two groups of subjects.The subjects in one group were kept awake for the entire night and the subjects in the other group maintained their normal sleep schedules.Which statistical analysis should be performed to answer the question "Does sleep loss affect working memory?"

A) single-sample t test
B) z test
C) independent-samples t test
D) paired-samples t test