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A customer wants delivery to be ensured between 10 am and 2 pm. Your truck leaves the factory at 4 am and time taken to reach the customer is normally distributed with an average of 8 hrs and a standard deviation of 1 hr.
What is the process capability ratio of the process?
If you want to improve the ability of the delivery process to a 6-sigma process, what would be the new mean and standard deviation of the delivery time you should target? Can you recommend one practical action to achieve the target?
Below are one hundred pseudorandom numbers from a uniform pdf. Set up and test the appropriate goodness-of-fit hypothesis. Let α = 0.05.
Explain the ANOVA output table values:
At the .05 significance level, can we conclude that there is a difference in their mean times?
For the following hypothesis test where H 0 : m £10 vs. H a : m >10, we reject H 0 at level of significance a and conclude that the true mean is greater than 10 when the true mean is really 8.
write down the hypothesis the test used the p-value and the interpretation then hand calculates a 95% CL for the odds ratio estimate on this last test.
To findout the point estimate of the difference among population mean. Elucidate the percentage increase in the number of days on the disabled list.
Given the following data, calculate the EMV for each investment alternative. Which is best based on the EMVs you calculated?
One of the main measures of the quality of service provided by any organization is the speed with that responds to customer complaints. A large family-held department store selling furniture and flooring, including carpet, had undergone a chief ex..
Number of rescue calls received by rescue squad in city follows a Poisson distribution with mu = 2.83 per day. Squad can handle at most four calls a day. Determine the probability that squad will be able to handle all calls on a particular day?
At α = .05, is there a difference in variances? Illustrate all steps clearly, including illustration of the decision rule.
Using the p- value approach, test the hypotheses at the 5% level of significance.
The number of bombardment necessary to achieve the disintegration of a certain nucleus is assumed to have the distribution above. In one sequence in which b bombardments are available, of these have already failed to disintegrate the nucleus. What..
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