Suppose the Life of a Particular Brand of Calculator Battery

question 47

Multiple Choice

Suppose the life of a particular brand of calculator battery is approximately normally distributed with a mean of 75 hours and a standard deviation of 10 hours. If the manufacturer of the battery is able to reduce the standard deviation of battery life from 10 to 9 hours, what would be the probability that 16 batteries randomly sampled from the population will have a sample mean life of between 70 and 80 hours?

• A) 0.6127
• B) 0.8124
• C) 0.9736
• D) 0.8812

Appreciate the ethical obligations of consumers in the exchange process and the disposition of products.

Understand the concept of sustainable development and its importance in modern business.

Identify the various forms of social responsibility, including cause marketing and social audits.

Recognize the ethical implications of marketing decisions and consumer behavior.

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Definitions:

Alkyl Chlorides

Organic compounds containing a chlorine atom covalently bonded to an aliphatic carbon chain, used in various chemical syntheses.

Sodium Ethoxide

A strong base and nucleophile derived from ethanol and sodium, used in various organic reactions.

Ethanol

A two-carbon alcohol, commonly known as alcohol, used as a solvent, in beverages, and as a fuel additive.

Major Products

The primary substances produced in the highest yield from a chemical reaction.