In Order to Estimate the Average Electric Usage Per Month

question 89

Multiple Choice

In order to estimate the average electric usage per month, a sample of 64 houses was selected and the electric usage was determined. Assume a population standard deviation of 320 kilowatt-hours. If the sample mean is 1858 kWh, the 95% confidence interval estimate of the population mean is _____ kWh.

• A) 1779.6 to 1936.4
• B) 1818 to 1898
• C) 1792.2 to 1923.8
• D) 1538 to 2178

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Definitions:

Incorporation Statute

Laws enacted by a state that outline the requirements for forming and operating a corporation within that state.

Dividends

Corporate profit shares distributed among stockholders, often on a periodic basis.

Express Purposes

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Articles of Incorporation

Legal documents filed with the government to legally document the creation of a corporation, outlining its structure, purpose, and compliance with law.