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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?

Appreciate the impact of external factors such as time horizons on the planning process.

Recognize the importance of flexibility and adaptability in planning to address unforeseen challenges.

Understand the concept of qualitative and quantitative forecasting in business planning.

Recognize the different types of plans (strategic, tactical, operational, and contingency) and their roles in implementing a business strategy.

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