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A manuscript is sent to a typing firm consisting of typists A, B, and C. If it is typed by A, then the number of errors made is a Poisson random variable with mean 2.6; if typed by B, then the number of errors is a Poisson random variable with mean 3; and if typed by C, then it is a Poisson random variable with mean 3.4. Let X denote the number of errors in the typed manuscript. Assume that each typist is equally likely to do the work.
Assume that Leo advertises "If it takes more than 30 minutes to get your pizza, you get it free". What percentage of his take-out pizzas will have to give away free?
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots. A partial ANOVA table
Using the letter M for male and F forfemale. Define a second sample space S and where the elements represent the number of females selected.
Let x1, ..., xn be a random sample from an exponential distribution, X ~ EXP(theta) a) If x(bar) = 17.9 with n = 50, then find a one-sided lower 95% confidence limit for theta.
Discussion should include a critical reflection on the way in which you completed the market challenge element of the module.
A journal polled its readers to determine the proportion of wives who, if given a second chance, would marry their husband again.
Determine the distribution of X? Determine its parameters?
What are the null and alternate hypotheses? How many treatments are there? What is the critical value of F at the 5% level of significance? Indicate in words when you would reject the null hypothesis.
In a simple linear regression analysis of 18 data points the following ANOVA table was found.
Southeastern Bell stocks a certain switch box at its central warehouse for supplying field service offices. The yearly demand for these connectors is 15,000 units.
Parents collected a simple random sample of the times that 81 college students required to earn their bachelor's degrees. The sample has a mean of 4.8 years and a standard deviation of 2.2 years. Use a 0.05 significance level to test the claim tha..
Find the probability using the Poisson distribution.
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