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PUB-550 Calculating Confidence Intervals
PUB-550 Calculating Confidence Intervals
Calculating Confidence Intervals
The purpose of this PUB-550 Calculating Confidence Intervals assignment is to practice calculating confidence intervals.
For this assignment, students will utilize Excel and SPSS Statistics and the “Example Dataset.”
Using the “Example Dataset,” complete the following:
Based on a normal distribution curve, calculate the probability of an individual being 60 years or older in this population. Show the Excel and SPSS formulas or your hand calculations. Include screenshots as needed to illustrate this.
Using the sample standard deviation of age as an estimate of the population standard deviation, calculate by hand the standard error of the mean. Show your calculations and the answer.
Calculate by hand a 95% confidence interval for “Age” based on the sample mean. Use SPSS to verify your answer. Include your calculations and screenshots of the SPSS output. PUB-550 Calculating Confidence Intervals
Interpret the confidence interval for age and explain the three pieces of information needed to calculate a confidence interval.
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Submit one Word document that includes all of the assignment deliverables.
APA style is not required, but solid academic writing is expected.
This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.
You are not required to submit this assignment to LopesWrite. PUB-550 Calculating Confidence Intervals
Attachments
PUB-550-RS-Example Dataset.xlsx
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