The Average U

question 26

Essay

The average U.S. daily internet use at home is two hours and twenty minutes. A sample of 64 homes in Soddy-Daisy showed an average usage of two hours and 50 minutes with a standard deviation of 80 minutes. We are interested in determining whether or not the average usage in Soddy-Daisy is significantly different from the U.S. average.
a.State the null and alternative hypotheses to be tested.
b.Compute the test statistic.
c.The null hypothesis is to be tested at 95% confidence. Determine the critical value(s) for this test.
d.What do you conclude?

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Definitions:

Elevated Blood Pressure

A condition in which the force of the blood against the artery walls is higher than normal, potentially leading to heart disease.

Immune System

A complex network of cells, tissues, and organs that work together to defend the body against attacks by foreign invaders, such as viruses and bacteria.

Social Support

Assistance or comfort provided by others, often crucial for mental health and overcoming life's challenges.

Stressful Situation

A scenario or event that causes significant anxiety, tension, or distress to an individual.