SKU: 97374825417

Sample Size Illustrations, Confidence Intervals, & Margins of Error: Jeffreys Method Tables for Attorneys & Experts: 90 Percent Confidence Level

Sale price$116.69 Regular price$129.66
Save 10%

Pay in installments of $32.41 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 19 - Sep 24

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Sample Size Illustrations, Confidence Intervals, & Margins of Error: Jeffreys Method Tables for Attorneys & Experts: 90 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 90 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 90 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, 85, 95 and 99 percent confidence levels can be purchased as separate volumes from Walnut Oak Press.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 97374825417

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 22 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kayla M
Pawtucket, US
★★★★★ 3
Decent
Color: Dark Brown, Size: 15.7", Color: Dark Brown, Size: 15.7"
Instructions aren’t very clear. Takes a bit to figure out. Pretty cheap quality, but seems to be sturdy. The metal basket part of ours came rather bent and had to do some bending to get it to fit right. Decent size could be little thicker. They look good though once up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
I
Verified Purchase
israa
Natrona Heights, US
★★★★★ 5
Sturdy
Color: Dark Brown, Size: 15.7"
So good. Super sturdy I bought it almost 2 years ago and it’s still going strong.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
B
Verified Purchase
Bruce B.
Draper, US
★★★★★ 5
Buy it. I Did and I love it
Color: Black, Size: 15.7"
very well designed and a great value
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 5
Works well
Size: 6.5 FT, Color: Black
This thing was a life saver. It has plenty of plug ports for the price and it's not huge. The footprint is a bit bigger than some others but it's not bulky. Seems well built and the fact that I can power all my electronics and still have the USB ports to charge my phone and things is nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
M
Verified Purchase
MarTi
Grantham, US
★★★★★ 5
Good quality surge protector.
Size: 6.5 FT, Color: Black
It's great to have a search protector that has this much versatility. One of the spots that this is mostly needed is around the TV area. With the need to plug in TVs, DVD players, surround sound theater system equipment, Xbox and PS5's, wifi router etc. This thing has more than enough plug spaces then you can throw it at a single time. The east of having all these connecting ports available in one compact place is a big win. It also eliminates running unnecessary wires being that old the plugs you need to plug in will have it available socket. This search protector also has a very premium feel due to quality materials. Another great feature that it has is that you can hang it or drill it to a wall due in large part to its available pre drilled holes. Also the way that the sockets are aligned are perfect to plug different types of plugs with enough space in between. There is enough separation to make different types of plugs fit snuggly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025

recommand products