Two Sample Z Hypothesis Tests

Model off of : https://sixsigmastudyguide.com/one-and-two-sample-t-tests/ Make table of contents standard per test page.-Intro-Include image of equations (both equal and unequal variance)-What kind of test is this-When to use, when not to use-Examples 2 tail, left, right-Useful resources ,-Helpful videos-Excel exemplar downloads

Two Sample Z Test of Proportions

The two sample a test of proportions is used to determine whether the proportions of two groups differ. It calculates the range of values that is likely to include the difference between the population proportions. Assumptions of the Two Sample Z Proportion Hypothesis Tests The data are simple random values from both the populations Both (more…)

Statistics References

Statistics Guides: The Cartoon Guide to Statistics, by Larry Gonick Purchased by Nishimura lab OpenIntro Statistics, by David Diez PDF available for free download Second edition purchased by Nishimura Lab Statistics and Probability, by Khan Academy Website with lessons and tutorials Statistics for Biologists Collection, by Nature Publishing Group A series of articles chronicling statistical (more…)

Attribute Chart: c Chart

What is a c Chart? A kind of Attribute Chart. Why and When do you use a c Chart? How do you Create a c Chart Example of using a c Chart in a Six Sigma project Videos of c Charts Additional Helpful Links