Minitab replied to the topic Attn Minitab 17 Experts: Calculating Confidence Intervals in Graphical Summaries in the forum Tools & Templates 1 year, 1 month ago
Hi Tom. I’ll be glad to clarify. The sample mean has an exact standard normal (Z) distribution when the population from which the sample is selected is normally distributed with known standard deviation. That’s a helpful academic consideration when learning about confidence intervals, but, in practice, we almost never know the true standard dev…[Read more]
Thanks for your question. Minitab doesn’t have a 2-sample Z test built into the software. However, there’s a macro in our macro library that can run this test. The macro and instructions are available here: http://support.minitab.com/en-us/minitab/18/macro-library/macro-files/general-statistics-macros/two-sample-z-test/
Minitab replied to the topic Minitab: Splitting Column Data into Multiple Columns in the forum Tools & Templates 1 year, 5 months ago
Hello Topi, and welcome to the Minitab community!
We wanted to add here that Minitab only offers to split a text string by spaces when you Paste data into a column. If the pasted data contain spaces, you’ll see this dialog box, which does what you’re asking. Choose the first option. (Note there’s no other way to access this dialog box excep…[Read more]