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Example 3-2 Population Mean Vacation Ski Packages Issue: Determine the mean nightly revenue for the Foster City Hotel. Objective: Use Excel to calculate the population mean revenue Data File is FosterCity.xls
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Open the Excel file called FosterCity.xls Example 3-2 Population Mean
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Option 1 – Use the Excel Average function. Click the function wizard – Select Statistical category – Select Average Example 3-2 Population Mean
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Specify data range - Click OK Example 3-2 Population Mean
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Population Mean Example 3-2 Population Mean
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Optional Method: Select Tools, then Data Analysis Example 3-2 Population Mean
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Select Descriptive Statistics Example 3-2 Population Mean
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Define Data Range and select options Example 3-2 Population Mean
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Mean Revenue Example 3-2 Population Mean
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Example 3-6 Mean, Median and Mode Weigh-In-Motion Issue: Does the WIM scale produce gross weights that are close to the POE weights? Objective: Use Excel to develop histograms for the weights from each scale and to compute the mean, median, and mode for each scale. The data file is Trucks.xls.
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Open the data file called Trucks.xls Data File contains 200 trucks. Last row is 201 Example 3-6 Mean, Median, and Mode
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Optional method for determining the frequency distribution and histogram – use Pivot Tables – refer to example 2-8 in Chapter 2 for specifics Example 3-6 Mean, Median, and Mode
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Group the WIM weights by 10,000 pounds starting at 15,000 pounds (See Example 2-8 for specific steps required to group data. Example 3-6 Mean, Median, and Mode
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Highlight the frequencies and click on the Chart Wizard to develop “quick- and dirty” histogram Example 3-6 Mean, Median, and Mode
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Close Gaps by selecting bars – Right Clicking – select Format Data Series - then Options. Example 3-6 Mean, Median, and Mode
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Completed Histogram for WIM gross weights – Repeat the process for POE gross weights. Then compute mean, median and modes for both variables Example 3-6 Mean, Median, and Mode
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Select Tools – then select Data Analysis Example 3-6 Mean, Median, and Mode
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Click on Descriptive Statistics Example 3-6 Mean, Median, and Mode
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Define Data Range and select options Example 3-6 Mean, Median, and Mode
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Delete un-needed columns Example 3-6 Mean, Median, and Mode
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Mean, Median, and Mode Example 3-6 Mean, Median, and Mode
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