Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [engineering-statistics]

Engineering statistics combines engineering and statistics using scientific methods for analyzing data. Engineering statistics involves data concerning manufacturing processes such as: component dimensions, tolerances, type of material, and fabrication process control.

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Predictive maintenace model to identify indication of failure before it happens

Situation I'm working on a problem where I'm using sensor data to predict machine failure before the failure happens and I need some advice on which methods to explore. Specifically, I want to identify indications of impending failure prior to the…
CurtLH
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Given a control chart that shows the mean and upper/lower control limits, how do I tell if the cause of out of control points is assignable or not?

I am given 15 points. The control limits are at +/- 3 $\sigma$. Points 1, 4, 5, 6, 7, 8, 9, 10, 11, 13, and 15 fall within the control limits. Points 2, 3, 12, and 14 are outside of the control limits, with 2 being below the lower control limit and…
Thomas Owens
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Does every statistic have a sampling distribution, not just the sample mean?

I am curious because most basic undergraduate statistics reference just start out Inferential Statistics by mentioning sampling distributions and the sampling distribution of the mean. My question is that does every statistic have one? Even the…
AndroidV11
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Reorder point with stochastic lead time and demand

I'm trying to determine the optimal reorder point for some products. The reorder point must be greater than the demand during lead time a $\%$ of the times that I should determine, let's say $95\%$. Problem is demand is of course stochastic. I have…
Pinx0
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Confused when to use Population vs Sample standard deviation in engineering testing

When I run an test for something (say 10 trials) and want to find the standard deviation of all 10 trials, I am getting confused if I should use the sample or population standard deviation. My initial thought would be the sample standard deviation…
pnd1987
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Book recommendations for reviewing probability and statistics for engineering major

I'm an Industrial Engineering Major and I'm looking out for book(s) on Probability and Statistics (Combined would be preferred but separate would do as well) which : I, as a self learner, can work with. Is concise but covers : Statistical methods…
Blah
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What books provide an overview of engineering statistics?

As an engineer, I'm interested in topics such as designing experiments that are statistically valid, quality control, process control, reliability, and cost control. I took a course in engineering statistics, but unfortunately neither the book nor…
Thomas Owens
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How do I calculate the probability that some system will survive for some years before some event will occur?

I have a failure rate problem involving structural beams. The scenario is that a set of $n$ structural beams are supporting a weight of $W$ kilograms. For the purpose of simplification, we can assume that all the structural beams equally support the…
The Pointer
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What to do if the range of an input factor changes after running the experiment?

I am gaining my first experiences in Designing Experiments and here where I am stack: An experiment has been run with some continuous input factors: x1, x2, ..., x5. The goal of the experiment was to optimize some continuous output factor y. As the…
learner
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Machine Failure Prediction through parameter degradation?

The problem that I've in hand is there is a temperature value (time series data) which keeps on increasing linearly during the manufacturing process and after it reaches a threshold, the process should be halted to avoid system breakdown. I have to…
SARA
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What is the best syllabus for an under-grad class in Statistics for engineer students?

I teach statistics to under-grad engineer students who major in Information Technology (IT). My students first learn a (prerequisite) course on probability where they learn combinatorics, different probability distributions and the central limit…
nafrtiti
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Grad level books for survivability analysis applied to manufacturing

I am looking for a grad level book on survivability analysis applied to manufacturing such as assembly lines. Preferably in R. I am familiar with measure theory, probability theory and R.
Stereo
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Sample an Interval on Continuous Variables, Intervals, Statistical Significance, Sampling - Applied Stats Question

Let's say I have a segment of pipe of length $X$ that I want to test the integrity of by way of a hydrostatic pressure test. That is, I isolate the ends of the pipe and pump water into it until it a very high pressure is attained and hold that…
Mark B
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Suggest me best statistical test

I have data of frequency of 10 males( birds) voice across age. And I want to study how peak frequency ( one of the acoustic parameter in bird's call) of males call changes as they age. Call data taken from particular age is dependent from its…
user50026
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Statistical design for failure analysis

I am designing a test plan to find factors that correlate with pavement failure. Failure is a rare occurrence. How would I go about designing the test? I have N factors, with various factor levels, that I’d like to know the effects of. This is an…
Bryan
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