• Calling all Minitab experts!

    I see there is something called a 2-sample t-test in Minitab. But is there a 2-sample Z-test? 1 year, 8 months ago

  • Mr. Butler,

    Allow me to clarify the situation for you, so you’ll better understand what I’m asking and why I’m asking it. My apologies for not being clear previously. To quote Julie Andrews in the Sound of Music, “Let’s start at the very beginning, a very good place to start.”

    I’m coaching a colleague on a project she’s leading. She approached…[Read more]

  • Mr. Butler,
    Thank you very much for your detailed explanations. I greatly appreciate the time and effort you made to articulate your responses. If I may, I’d like to continue this discussion and request your further reply.

    You stated previously, “The fact remains the minimum number of samples needed to make inferences about a population is 2.…[Read more]

  • I’m hoping someone can clarify this for me. Maybe I’m not understanding something here, but I keep reading that a “large sample size” is one that is greater than or equal to 30. And with a sample size of n>=30, you are able to make inferences about the population from the sample. If this is correct and you only need a minimum of 30, then why do we…[Read more]

  • tgause became a registered member 2 years, 2 months ago