Dr Patton Is a Professor of English

question 67

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 44 students, the mean number of misspelled words per essay was 6.05. Construct a 90% 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:

Profit and Loss Ratio

An indicator that measures the ratio of profits earned to losses incurred over a particular period, often used to assess a company's financial health.

Income Summary

A temporary account in the ledger that summarizes revenue and expenses and transfers the balance (net income or net loss) to Capital. This account does not have a normal balance, i.e. it could have a debit or a credit balance.

Capital Balances

The amounts recorded in the capital accounts of a company or partnership, reflecting the initial capital contributions and subsequent changes including profits earned and withdrawals.

Losses

Financial reductions resulting from business activities, such as the sale of assets for less than their book value or operational losses.