Sample Size Illustrations, Confidence Intervals, & Margins of Error: Jeffreys Method Tables for Attorneys & Experts: 85 Percent Confidence Level
SKU: 5045264373

Sample Size Illustrations, Confidence Intervals, & Margins of Error: Jeffreys Method Tables for Attorneys & Experts: 85 Percent Confidence Level

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Sample Size Illustrations, Confidence Intervals, & Margins of Error: Jeffreys Method Tables for Attorneys & Experts: 85 Percent Confidence LevelThis volume will assist both non statisticians and statisticians in determining an appropriate sample size to be taken and the confidence intervals and margins of error for samples that have already been taken using the Jeffreys method at the 85 percent confidence level. This volume is designed to help with a specific kind of sample, one in which each member can be assigned into one of two groups (defective or not, good or bad, working or unemployed,

This volume will assist both non-statisticians and statisticians in determining an appropriate sample size to be taken and the confidence intervals and margins of error for samples that have already been taken using the Jeffreys method at the 85 percent confidence level. This volume is designed to help with a specific kind of sample, one in which each member can be assigned into one of two groups (defective or not, good or bad, working or unemployed, married or single, yes or no, liked or disliked, etc.)
Sample sizes in this book range from one to 4,500 for determining sample size illustrations and one to 250 for determining confidence intervals and margins of error.
Tables for 80, 90, 95 and 99 percent confidence levels can be purchased as separate volumes from Walnut Oak Press.

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SKU: 5045264373

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It only vibrates. My dog enjoys it, but it doesn't spin or do what you would expect it to do. I essentially bought my dog a vibrator...
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Great dog toy
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Fun interactive toy. I felt this was a little pricey but watching my puppy playing with it is priceless. She flings it all over the room. As a puppy she chews on it a lot because of teething but there still isn’t a mark on it. Battery lasts a very long time and requires no replacement batteries just a usb connection. It is a little noisy so sometimes I let her play with it without turning it on. All told, it is one of her favorite toys. She is 4 months and weighs 7 pounds, just to give you an idea if it will work for your dog.
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Maverick
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I love this, my pup loves this. Strong, sturdy. Shakes all over the place. Pup loves to chew on it, I think the vibration comforts her gums from teething. Perfect size You must take the outer skin off and pop open the white power button to charge it. Total fun!
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Reviewed in the United States on March 22, 2026

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