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Are the customers dissatisfied? An automobile manufacturer would like to know what proportion of its customers are dissatisfied with the service received from their local dealer. The customer relations department will survey a random sample of customers and compute a 95% confidence interval for the proportion that are dissatisfied.
From past studies, they believe that this proportion will be about 0.15. Find the sample size needed if the margin of error of the confidence interval is to be no more than 0.02.
test the hypothesis that 9.575083 10.55852 amp 9.17 are equal. what is the numerator degrees of freedom? what is the
An element E has a constant failure rate λ and a reliability at time t of R(t)=p, if p=0.5 and 0.9, what is the effect on Rs(t), basic reliability, serial Mean Time Between Failure, hs(t), MTBFs if additional elements are added to the baseline sys..
What is the probability that a randomly selected student skipped at least one class yesterday?- Create a table that gives the cumulative distribution function for X.
Calculate the percentage of refunds expected to exceed $1000 under the current withholding guidelines and prepare a quantitative report advising the company on the optimal course of action.
1. Suppose a food scientist wanted to compare the "tastiness" of different variations of a cookie recipe. (a) Suggest several ways to quantify (measure) "tastiness", and discuss the advantages and disadvantages of each.
Define and explain of the importance of medical informatics. What impact does medical informatics have on the quality of care of patients?
What is the probability of getting a perfect score if you were forced to guess at each question?
If the expected frequency in a cell happens to be less than 5.0, what should be done in order to carry out the analysis?
the wind mountain archaeological site is located in soutwestern new mexico. wind mountain was home to a culture of
A project manager at COMSOFT corporation has collected statistics on the organization's software development process. He has the size of each project in number of lines of code for the past 20 projects and the number of lines of code in error disc..
Lucerne earns a gross income of $5,500 per month and applies for a mortgage with a monthly PITI of $1,244. Lucerne has other financial obligations totaling $829 per month. (Use the ratio guidelines from your text) What type of mortgage, if any, wo..
the speed with which utility companies can resolve problems is very important. gtc the georgetown telephone company
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