Find and Interpret a 95% Confidence Interval for the Population

question 49

Essay

Find and interpret a 95% confidence interval for the population mean number of laptops owned by an average Australian household, if a random sample of 40 Australian households had a sample mean of 1.3 laptops. The population variance is known to be 4 laptops².

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Definitions:

Tobacco Use

The act of consuming tobacco products, such as cigarettes, cigars, or chewing tobacco, which poses significant health risks.

Water-Soluble

Capable of dissolving in water, a property of many vitamins and minerals that affects how they are absorbed and used in the body.

Carcinogens

Substances or exposures that are directly involved in causing cancer.

Aldehydes

A class of organic compounds obtained from alcohol by oxidation and also found in cigarette smoke; they cause mutations and are related to the development of cancer.