A Survey of College Students Reported That in a Sample

question 3

Multiple Choice

A survey of college students reported that in a sample of 433 males students, the average number of energy drinks consumed per month was 2.40 with a standard deviation of 4.71, and in a sample of 63 female students, the average was 1.67 with a standard deviation of 3.50. Construct a 98% confidence interval for the difference between men and women in the mean number of energy drinks consumed.

• A)(-0.53, 1.99)
• B)(-9.61, 11.07)
• C)(-0.38, 1.84)
• D)(-0.49, 1.95)

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Definitions:

Plant Size

Refers to the scale or capacity of a manufacturing facility or industrial plant, affecting its potential output levels and efficiency.

Output Units

The measured quantity of goods or services produced by a firm or industry.

Long Run

A period of time in economics during which all factors of production and costs are variable, allowing for full industry adjustment to changes.

Extensive Range

A wide scope or variety of something, covering a broad spectrum.