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5 Whys

The 5 Whys Technique: Origins The 5 Whys steps method was developed by Sakichi Toyoda in Japan, who is also an inventor and founder of Toyota Industries. It was popularized in the 1970s and Toyota still uses it today to solve problems. Toyota believes in a...

1-Sample Sign Test

Dr. Arbuthnot, a Scottish physician, invented the one sample sign nonparametric hypothesis test in 1710, but, what is the one sample sign t test? Sign testing is used to verify the null hypothesis that a distribution’s median equals some hypothesized value. It...

2-Sample t-Test

A 2-sample t-test is one of the most common hypothesis tests used in Six Sigma. This test is used to determine if the difference in average success rates between two groups is significant or random chance. This helps answer questions such as whether the average...

Swot Analysis

What is SWOT Analysis? SWOT analysis (strengths and weaknesses, opportunities and threats) is a framework that can be used to assess a company’s competitive position and to plan for the future. A SWOT analysis has a lot of benefits because it examples and...

Check Sheet or Check in Sheet

The check sheet stands as a cornerstone tool for streamlining processes and ensuring excellence. Often referred to as a checksheet or check in sheet, this simple yet powerful tool captures data in real time, helping businesses identify patterns, reduce defects, and...
Secret Link

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