The Bureau of Labor Statistics Reported That the Average Yearly

question 70

Essay

The Bureau of Labor Statistics reported that the average yearly income of dentists in the year 2012 was $110,000. A sample of 81 dentists, which was taken in 2013, showed an average yearly income of $120,000. Assume the standard deviation of the population of dentists's incomes in 2013 is $36,000.
a.We want to test to determine if there has been a significant increase in the average yearly income of dentists. Provide the null and the alternative hypotheses.
b.Compute the test statistic.
c.Determine the p-value; and at 95% confidence, test the hypotheses.

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Definitions:

Obesity

A medical condition characterized by excessive body fat that presents a risk to health, often measured by body mass index (BMI).

Cardiovascular Disease

A general term for conditions affecting the heart or blood vessels, often related to atherosclerosis or the build-up of plaque in the arteries.

United States

A federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions, known for its influence on global culture, economy, and politics.

Unintentional Injuries

Injuries that occur without intent to harm, often resulting from accidents or lack of caution, and can be a major public health concern.