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According to a Recent Survey, Women Chat on Their Mobile

question 20

Essay

According to a recent survey, women chat on their mobile phones more than do men (CNN.com, August 25, 2010). To determine if the same patterns also exist in colleges, Irina takes a random sample of 40 male students and 40 female students in her college. She finds that female students chatted for a sample average of 820 minutes per month, with a sample standard deviation of 160 minutes. Male students, on the other hand, chatted for a sample average of 760 minutes per month, with a sample standard deviation of 240 minutes. It is not reasonable to assume equal population variances.
A) Specify the competing hypotheses to determine if female students chat more, on average, than male students.
B) Calculate the value of the test statistic and its p-value.
C) Make a conclusion at the 5% significance level.

Definitions:

If … Then Model

A cognitive-behavioral framework suggesting that individuals' reactions are conditional responses based on their personality and the specifics of the situation.

Watson's S-R Connection

Refers to John B. Watson's theory in behaviorism emphasizing the stimulus-response (S-R) connection, suggesting that behavior is a result of external stimuli.

Mischel

A psychologist known for his work on personality theory and cognitive-affective systems, suggesting that behavior is influenced more by situational factors than by innate traits.

Nomothetic Goals

Refers to the objectives or aims that can be applied universally, emphasizing general laws and traits that can be studied across individuals.