(Answered) Question hypotheses what is a hypothesis test why do we

Statistics

Question: Hypotheses

What is a hypothesis test? Why do we need to use them to make decisions about relating sample results to the population; why can't we just make our decisions by the sample value?

REFERENCE:

Tanner, D. E., & Youssef-Morgan, C. M. (2013). Statistics for managers

Chapter 3: Applying z to Groups

Chapter 4: t-Tests: Comparing Groups to Populations and Groups to Groups

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