Suppose You Take a Random Sample from a Population Known

question 25

Multiple Choice

Suppose you take a random sample from a population known to be normally distributed, but the value of σ is unknown. Your sample size is n =15. Which formula below should be used to find the 95% confidence interval for the mean? ​

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Market Researcher

A professional who conducts research to gather, analyze, and interpret data about market conditions, consumer preferences, and competitive dynamics to inform business decisions.

Predictive Modeling

The use of statistical techniques and algorithms to forecast future events or trends, based on historical data and analysis.

Statistical Analysis

The process of collecting, exploring, and presenting large amounts of data to discover underlying patterns and trends and make decisions.

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