A Study of Peach Trees Found That the Average Number

question 61

Multiple Choice

A study of peach trees found that the average number of peaches per tree was 525. The standard deviation of the population is 105 peaches per tree. A scientist wishes to find the 80% confidence interval for the mean number of peaches per tree. How many trees does she need to sample to obtain an average accurate to within 12 peaches per tree?

• A) 77
• B) 55
• C) 83
• D) 126

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Definitions:

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The process by which individuals learn and incorporate new words into their language.

Figurative Use

The application of words or phrases in a metaphorical or symbolic sense, rather than their literal meaning.

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A cognitive process enabling children to quickly deduce the meaning or category of unfamiliar words during the acquisition of new language.

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An environment or scenario that is organized and governed by clear rules or guidelines.