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List 5 grades each between 50-100 in columns A1 to A5 in an excel spreadsheet. To find the mean rounded to the hundredths by typing

List 5 grades each between 50-100 in columns A1 to A5 in an excel spreadsheet. To find the mean rounded to the hundredths by typing this in a cell

=average(A1:A5)

and hit enter, Then round 2 places to get the average or x bar.

To find the sample standard deviation type this in a cell

=stdev.s(A1:A5)

and then hit enter to find s

To find the z score given x =82, type this in a cell but instead of the variables use the numbers you found for xbar and s and let x = 82 =(x-xbar)/s

then hit enter. This is the z score

To find the z value

type this in a cell

=norm.s.dist( z , true)

and hit enter

This would give you the same value as if you used the chart.

Save as an excel workbook

Please attach this excel spreadsheet to your comments on this discussion post.

I need the excel sheet attached!!!

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