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.

• 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.

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Definitions:

Ethnocentrism

is the belief in the inherent superiority of one's own ethnic group or culture, often leading to prejudice and discrimination against others.

Perspective

A particular attitude towards or way of regarding something; a point of view.

Other Cultures

Refers to cultures or societies that are distinct from one's own, emphasizing diversity in social practices, beliefs, and values.

Othering

A process that defines and secures one's own identity by denigrating someone else or another group that is considered different.