Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [minitab]

Commercial statistical package distributed by Minitab Inc.

Minitab, distributed by Minitab Inc., is a commercial general-purpose statistical package.

86 questions
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How useful is Minitab in the real world?

I am currently a statistics student within a very good program. We use Minitab for a variety of items/classes. But, as my undergrad taught me, what you use in school isn't necessarily what is used in the real world. I'm also well-versed with C#,…
Unknown Coder
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How to generate random data that conforms to a given mean and upper / lower endpoints?

I'm in need of generating a set of random numbers (between 100 and 300 would suffice), which conform to a given mean, and also fall within certain upper and lower endpoints. Using the statistics software that I have (Minitab), I can find options to…
KF Harlock
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Normality test for discrete values of a continuous variable

I have a dataset with several hundred pH measurements from a factory line. This dataset will be used to infer process capability using Minitab. On a physical basis, pH is a continuous scale (being the negative logarithm of the concentration of free…
Markos Strofyllas
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Comparing minitab output to R

I am trying to recreate analysis of diamond data in R and compare it to minitab output cited in http://www.amstat.org/publications/jse/v9n2/datasets.chu.html I'm almost certain its the same data set yet my results are different. I suspect I'm…
mikeb
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Software for learning statistical quality control

I'm taking a course in Statistical Quality Control as an elective in my masters program. We're using Montgomery's Introduction to Statistical Quality Control, 6th Edition. The book uses minitab throughout and the professor would like us to use…
Chris Simokat
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Problem with ARIMA in Minitab

I have made non-stationary data stationary by differencing at lag 1 and then differencing the differences at lag 11. The data values for months 1/06 through 6/11 are in an Excel file at https://rapidshare.com/files/3190310580/data.xls, reproduced…
jerin
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how to determine skewness from histogram with outliers?

I have the following histogram created in Minitab. I am wondering whether this histogram is actually positively skewed, negatively skewed, or symmetric. By observing the graph itself, it seems that it is negatively skewed. However, mean (58.08) >…
Joshua
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Problem with factorial design in Minitab

I'm having a problem with a factorial design in Minitab, as it is not as clear how to proceed as all problems I've had thus far. The problem is to create a factorial design with two factors where the first factor, Environment, which has two levels -…
Cenderze
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Stat test to compare two sets of binomial data

I am doing my undergraduate project and have tested a drug on cells for a responce. The data I have collected shows that the cells either produced a responce, or they did not. Binomial data? Control 0ug/mL 22 3053 Control2 (DMSO) 15 …
user25203
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How to perform two-sample t-test with Minitab?

I am trying to do a few tests in Minitab and I don't understand why they are not working out. First, my data in minitab has several columns: Class Name Gender Height Age, where Class has two values {A,B}; Name is the name of the students;…
MaoYiyi
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ARIMA Forecast Restrictions

Is it possible to fit an ARIMA under a restriction that bounds the minimum to positive values? I'm using Minitab.
Joe
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Tips for rejected Ljung-Box stats? Can Minitab model ARIMAX?

Two questions: What are some basic tips on going back to the drawing-board after a seasonal ARIMA fit shows significant coefficients (1,0,0)x(0,1,0) but fails in its Ljung-Box stats? Can minitab be used to model an ARIMA with regression?
Joe
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How do I estimate and interpret a forecast made by Minitab?

From 43 years of monthly stream flow data, I want to get 11 years ARIMA future forecast using Minitab 15 statistical Software. The difficulty is the procedure to be followed, interpretation of model outputs (Final Estimates of Parameters and…
Kas
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How to properly analyze: 4-way ANOVA?

I have a dissertation research question which involves what I am thinking is appropriately analyzed using 4-way ANOVA. The dependent variable is a math anxiety score (uses 5-point Likert scale). The independent variables, for this portion of the…
Linda
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Statistical Significant Difference between 5 groups of data

I'm trying to compare 5 different gears used by fishermen and the amount of bycatch found in each. The values have a unit of "% of time encountered" and range between 0% (ie: never have bycatch) and 100% (ie: encounter bycatch every time they go…
Guy
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