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Taguchi experiment is to be performed on the effects of lift, bore, stroke, and compression on engine performance with horsepower as the outcome variable. The factors were tested at each of the following levels in hopes of improving engine horsepower.
Lift (L) 2.75 2.90Bore (B) .10 .30Stroke (S) .50 .60Compression © 8.50 12.00
The following experiment was used and the results of all trials are as follows:
Trial L B S C Response1 1 1 1 1 3842 2 1 1 2 2853 1 2 1 2 3414 2 2 1 1 3225 1 1 2 2 4016 2 1 2 1 2597 1 2 2 1 3108 2 2 2 2 375
Determine the best levels for each factor and state your conclusions.
The amount of time a bank teller spends with each customer has a population mean = 3.1 minutes and population standard deviation = 0.4 minute.
Find the critical value for a two tailed F-test with alpha=.05 when the sample size from which the variance for the numerator was obtained was 21 and the sample size from which the variance for the denominator was obtained 12
Annual family dental expenses for the families of a random sample of ten employees of a company are given below. You can assume the family dental expenses for the employees of the company are normally distributed.
Ball bearings are manufactured with a diameter of 5 mm. But the process has variation, so the diameter is normally distributed with a mean of 5 mm and a standard deviation of .02 mm. A) What proportion of ball bearings are more than 5.03 mm?
A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 70%.
There are three flight phases. At α = 0.05, is the cockpit noise level independent of flight phase?
If one item is chosen at random, determine these probabilities. It is a TV
In some ways, ANOVA is like what communications engineers refer to as "signal-to-noise ratio". What could I possibly mean by that statement?
From an urn containing balls, a ball was drawn, weighted and replaced. This experiment was repeated 5 times. what is the standard error of sample mean?
Without good measurement, statistical analysis is worthless." Do you believe it is an overgeneralization, or do you think it is accurate as written?
Normalized matrix for one decision criterion at Firm T is given below.
Shaver Manufacturing, Inc., offers dental insurance to its employees. A recent study by the human resource director shows the annual cost per employee per year followed the normal probability distribution
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