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Your company is considering submitting a bid on a major project. You determine that the expected completion time is 100 weeks and the standard deviation is 10 weeks. It is assumed that the normal distribution applies. You wish to set the due date for the project such that there is an 85 percent chance that the project will be finished by this time. What due date should be set?
At the .05 level of significance, is there evidence of a difference in variability in the shipping time between the two outlets? What decision should the carpet manufacturer make? Please provide step by step solution.
Create Frequency Distribution of Sample Mean. Compute and Identifies Sampling Distribution of Sample Mean.
20% of teenagers in a small town say they like reading news online. Suppose you randomly select 7 teenagers from the town and ask them whether or not they enjoy reading news online. Find the probability that at least 3 say they enjoy reading news ..
When creating a 99% confidence interval for the true average difference in cholesterol levels by the drug, what is the margin of error?
If hypothesis test for single population variance is to be conducted by using significance level of to 0.10, a sample size of n = 16, and test is a one-tailed upper-tail test, the critical value is?
Application of simple linear regression analysis to the estimation of a demand equation has yielded the following
Data on distribution of cost for building effort, design work and testing effort.
A function sometimes associated with a continuous nonnegative random variable is the failure rate (or hazard rate) function which is defined as:
14 machines are planned to be used for a 60-day production run for a customer. The operating time is 1660 hours. Upon failure, a machine must be returned to the manufacturer for repair.
Using the appropriate statistical procedure on the SPSS, test the between group means for a significant difference.
What are the best-case and worst-case outcomes the owner may face on this product if she implements your suggestion?
If we assume that the lifetime of this type of bulb has a standard deviation of 400 hours, can we conclude at the 5% significance level that the claim is true.
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