You Are Interested in Determining Whether the Mean Price of Electricity

question 97

Multiple Choice

You are interested in determining whether the mean price of electricity offered by solar companies is different in the southern states than in the northern states.You select a random sample of 8 solar companies from the southern states and 11 from the northern states.For the southern states, the average price is 12.2 cents per kWh (kilowatt hour) and the standard deviation is 0.8 cents per kWh.For the northern states, the average and standard deviation are 11.7 and 1.0 cents per kWh respectively.If you use a significance level α = 0.10 and assuming the values are normally distributed in both populations, the critical t value from the table is ______.

• A)1.330
• B)1.729
• C)1.734
• D)1.740
• E)1.747

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Definitions:

Self-Confidence

The belief in one's abilities, qualities, and judgment, often leading to higher levels of performance and success.

Need for Achievement

An individual's desire for significant accomplishment, mastering of skills, control, or high standards.

Initiating Structure

Leadership behavior focused on defining roles, tasks, and objectives to organize work and establish clear patterns of organization and communication.

Consideration

In contract law, something of value given by both parties to a contract that induces them to enter into the agreement to exchange mutual performances.