The Weights at Birth of Five Randomly Chosen Baby Giraffes

question 48

Multiple Choice

The weights at birth of five randomly chosen baby giraffes were 111, 115, 120, 103, and 106 pounds. Assume the distribution of weights is normally distributed. Find a 95% confidence interval for the mean weight of all baby giraffes. Use technology for your calculations. Give the confidence interval in the form "estimate ± margin of error." Round to the nearest tenth of a pound.

• A)110.0 ± 8.5 pounds
• B)111.0 ± 8.5 pounds
• C)111.5 ± 9.0 pounds
• D)There is not enough information given to calculate the confidence interval.

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Definitions:

Incremental Costs

Incremental costs refer to the additional costs that a company incurs when increasing its production or activities by a small amount, also known as marginal costs.

Accumulated Depreciation

The total amount of depreciation expense recorded for an asset over its life.

Net Advantage

A term used in various contexts to indicate the superiority or benefit achieved by one option over another, often evaluated in decision-making scenarios.

Annual Operating Costs

The yearly expenses associated with running a business, excluding costs associated with the production of goods or services.