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According to a Recent Survey, Women Chat on Their Mobile

question 45

Essay

According to a recent survey, women chat on their mobile phones more than 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) Obtain a 95% confidence interval for the difference between the average amount of chat time for males and the average amount of chat time for females.
B) Make a conclusion at the 5% significance level.

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Definitions:

Autonomy

The degree to which a job provides an employee with the discretion and independence to schedule their work and determine the procedures to be used in carrying it out.

Procedural Justice

The perception of fairness in the processes and methods used to make decisions and allocate resources.

Morality Standards

Principles or norms concerning the distinction between right and wrong or good and bad behavior.

Turnover Process

The mechanism by which employees leave an organization and are replaced by new staff, impacting workforce stability.