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Calculate the mean of all the park acreages

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Reference no: EM131239160

Discussion: Data Analysis

You are now aware of the terms population, sample, and confidence intervals. You will be required to answer questions about these terms in this Discussion.

To prepare for this Discussion, review the following problem:

Review and respond to problem 5 under "Data Analysis" on page 409 of your course text.

To determine the solution to problem 5, you will need to:

1. Calculate the mean of all the park acreages (the "population mean")

2. Select a random sample of 20 of the values

3. Calculate the sample mean,

4. Construct a 90% confidence interval around that sample mean

5. Determine whether the population mean can be found within your confidence interval

Response that addresses the following question: Is the true proportion contained in the confidence interval? Be sure to justify your explanation.

Read a selection of your colleagues' postings.

Respond two or more of your colleagues' postings in one or more of the following ways:

  • Ask a probing question.
  • Share an insight from having read your colleague's posting.
  • Offer and support an opinion.
  • Make a suggestion.
  • Expand on your colleague's posting.

Return to this Discussion in a few days to read the responses to your initial posting. Note what you learned and the insights you gained from the comments your colleagues made.

Required Resources - Readings

Bluman, A. G. (2014). Elementary statistics: A step-by-step approach(9th ed.). New York, NY: McGraw-Hill. Chapter 7, "Confidence Intervals and Sample Size" (pp. 369-412)

Reference no: EM131239160

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