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Determining the Sample Size to Estimate Confidence Intervals: Definition & Process

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question 1 of 3

The number added to or subtracted from the point estimate is known as the:

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1. The _____ is the value of a sample statistic, which is used as an estimate of a population parameter.

2. The sample size is denoted by:

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About This Quiz & Worksheet

You can quickly and effectively determine how much you know about confidence intervals using this quiz/worksheet assessment tool. You will need to be familiar with point estimates, sample size and other relevant concepts in order to do well on this quiz.

Quiz & Worksheet Goals

You will be expected to do the following when you take this quiz:

  • Identify the term used to describe the number added to or subtracted from the point estimate
  • Recognize the term describing the value of a sample statistic
  • Note what the sample size and sample mean are each denoted by
  • Explain what a statistician would do when they don't know the population standard deviation but need to determine the sample size for an estimation of mu

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the lesson, such as what term describes the value of a sample statistic
  • Information recall - access the knowledge you've gained regarding what the number added to or subtracted from the point estimate is called
  • Knowledge application - use your knowledge to answer questions regarding what denotes the sample size and sample mean

Additional Learning

Use the lesson titled Determining the Sample Size to Estimate Confidence Intervals: Definition & Process to learn more. Details reviewed in this lesson include:

  • How a confidence interval is defined
  • What equation is used to determine sample size
  • What the E stands for in this equation
  • Where the value for z is found from in this equation
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