Dr Patton Is a Professor of English

question 16

Multiple Choice

Dr. Patton is a professor of English. Recently she counted the number of misspelled works in a
Group of student essays. She noted the distribution of misspelled words per essay followed the
Normal distribution with a standard deviation of 2.44 words per essay. For her Tuesday class of 50
Students, the mean number of misspelled words per essay was 6.05. Construct a 95% confidence
Interval for the mean number of misspelled words in the population of student essays.

• A) 5.374 to 6.726
• B) 5.161 to 6.939
• C) 5.102 to 6.998
• D) 5.482 to 6.618
• E) 5.445 to 6.3655

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Definitions:

Metal Ores

Naturally occurring solid materials from which metals can be extracted profitably.

Research And Development

Research And Development (R&D) involves investigative activities that a business conducts to improve existing products and procedures or to lead to the development of new products and procedures.

Operating Expenses

The costs associated with running the day-to-day operations of a business, such as rent, utilities, and payroll.

Accumulated Depreciation

The total amount of depreciation expense that has been recorded against a fixed asset over its useful life, reducing its book value.