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#1
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I know a rough bell-shaped curve can be drawn in Excel using random numbers.
Can normal distribution curves showing an area under the curve, i.e z-test or t-test area, be drawn in Excel? If yes, how? Thanks |
#2
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If you know what you want for your X and Y coordinates, you can use this
tutorial http://www.peltiertech.com/Excel/Cha...AreaChart.html "SM" wrote in message ... I know a rough bell-shaped curve can be drawn in Excel using random numbers. Can normal distribution curves showing an area under the curve, i.e z-test or t-test area, be drawn in Excel? If yes, how? Thanks |
#3
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Thanks for the suggestion.
I need to have 2 values ONLY shown on the x-axis, the value of the mean and the z-value (or equivalent). Is this possible? "Barb Reinhardt" wrote: If you know what you want for your X and Y coordinates, you can use this tutorial http://www.peltiertech.com/Excel/Cha...AreaChart.html "SM" wrote in message ... I know a rough bell-shaped curve can be drawn in Excel using random numbers. Can normal distribution curves showing an area under the curve, i.e z-test or t-test area, be drawn in Excel? If yes, how? Thanks |
#4
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I've never tried that, but I'm sure it's possible. Let's assume your
primary X axis values are Z scores from say -6 to +6 and you want to include the Mean. You'll need another series of data with X Y Label (Mean) -6 0 Mean for Z=-6 -5 0 Mean for Z=-5 and so on. Plot the X and Y axis labels on the chart. These will eventually be made invisible so don't worry about the color. You can use Rob Bovey's XY Chart Labeler to put a secondary label on those points. It's found at www.appspro.com http://www.peltiertech.com/Excel/Cha...mmySeries.html May help you as well. "SM" wrote in message ... Thanks for the suggestion. I need to have 2 values ONLY shown on the x-axis, the value of the mean and the z-value (or equivalent). Is this possible? "Barb Reinhardt" wrote: If you know what you want for your X and Y coordinates, you can use this tutorial http://www.peltiertech.com/Excel/Cha...AreaChart.html "SM" wrote in message ... I know a rough bell-shaped curve can be drawn in Excel using random numbers. Can normal distribution curves showing an area under the curve, i.e z-test or t-test area, be drawn in Excel? If yes, how? Thanks |
#5
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You could also contatenate the Mean and Z value and use the chart labeler to
add those at the appropriate location. "SM" wrote in message ... Thanks for the suggestion. I need to have 2 values ONLY shown on the x-axis, the value of the mean and the z-value (or equivalent). Is this possible? "Barb Reinhardt" wrote: If you know what you want for your X and Y coordinates, you can use this tutorial http://www.peltiertech.com/Excel/Cha...AreaChart.html "SM" wrote in message ... I know a rough bell-shaped curve can be drawn in Excel using random numbers. Can normal distribution curves showing an area under the curve, i.e z-test or t-test area, be drawn in Excel? If yes, how? Thanks |
#6
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there is a java programme
check this url http://www.math.csusb.edu/faculty/st...tion/normal_di stribution.html here as you can see the assumption is mean is 0 and sd 1.0 (what the statisticians called normalised variables) now you write your own mean and standard deviation and then if you want the probability between two values you enter x1 and x2 and click caluculate you gtet the area under and that is probility of values between those two values. I tried with mean as 95 and standardeviation as 12 and calculated probaility between 85 and 100 it came to 0.45921. try that url Barb Reinhardt wrote in message ... I've never tried that, but I'm sure it's possible. Let's assume your primary X axis values are Z scores from say -6 to +6 and you want to include the Mean. You'll need another series of data with X Y Label (Mean) -6 0 Mean for Z=-6 -5 0 Mean for Z=-5 and so on. Plot the X and Y axis labels on the chart. These will eventually be made invisible so don't worry about the color. You can use Rob Bovey's XY Chart Labeler to put a secondary label on those points. It's found at www.appspro.com http://www.peltiertech.com/Excel/Cha...mmySeries.html May help you as well. "SM" wrote in message ... Thanks for the suggestion. I need to have 2 values ONLY shown on the x-axis, the value of the mean and the z-value (or equivalent). Is this possible? "Barb Reinhardt" wrote: If you know what you want for your X and Y coordinates, you can use this tutorial http://www.peltiertech.com/Excel/Cha...AreaChart.html "SM" wrote in message ... I know a rough bell-shaped curve can be drawn in Excel using random numbers. Can normal distribution curves showing an area under the curve, i.e z-test or t-test area, be drawn in Excel? If yes, how? Thanks |
#7
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Many thanks for all the suggestions. will try them.
"Barb Reinhardt" wrote: You could also contatenate the Mean and Z value and use the chart labeler to add those at the appropriate location. "SM" wrote in message ... Thanks for the suggestion. I need to have 2 values ONLY shown on the x-axis, the value of the mean and the z-value (or equivalent). Is this possible? "Barb Reinhardt" wrote: If you know what you want for your X and Y coordinates, you can use this tutorial http://www.peltiertech.com/Excel/Cha...AreaChart.html "SM" wrote in message ... I know a rough bell-shaped curve can be drawn in Excel using random numbers. Can normal distribution curves showing an area under the curve, i.e z-test or t-test area, be drawn in Excel? If yes, how? Thanks |
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