The Results of a Recent Study Regarding Smoking and Three

question 53

Essay

The results of a recent study regarding smoking and three types of illness are shown in the following table.
We are interested in determining whether or not illness is independent of smoking.
a.State the null and alternative hypotheses to be tested.
b.Show the contingency table of the expected frequencies.
c.Compute the test statistic.
d.The null hypothesis is to be tested at 95% confidence. Determine the critical value for this test. What do you conclude?
e.
Determine the p-value and perform the test.

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Definitions:

Utilitarian Argument

A principle in ethics and economics that advocates for actions that maximize happiness or well-being for the largest number of people.

Minimum Wage Law

Legislation establishing the lowest hourly rate that employers can legally pay their employees.

Income Distribution

The way in which a country's total economic output is divided among its population, or the share of national income earned by each quintile or group of the population.

Bottom Fifth

A term often used in income distribution to refer to the lowest 20% of income earners in a given population.