A method for testing a claim or hypothesis about a parameter in a population,using data measured in a sample,is called
A) random sampling.
B) level of significance.
C) hypothesis testing.
D) guessing.

Question

Quizplus · Accepted Answer

Hypothesis testing involves using sample data to make inferences about a population parameter. It involves making a claim or hypothesis, setting up null and alternative hypotheses, choosing an appropriate level of significance, collecting data, and making a decision about whether to reject or fail to reject the null hypothesis based on the data. Random sampling is a technique for selecting a representative sample from a population. Level of significance is the threshold for rejecting the null hypothesis in favor of the alternative hypothesis. Guessing is not a valid statistical method.

A Method for Testing a Claim or Hypothesis About a Parameter