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let X and Y denote independent geometric random variable both of which have the parameter p.(a).compute P(X=Y)(b).compute P(X<Y)
Raftelis financial consulting reported that the mean quartely water bill in the US is 47.50. Some water systems are operated b public utilities while other water systems are operated by private companies.
Facebook CEO Mark Zuckerberg recently announced that it would be going public. The usual suspects, Morgan Stanley, JPMorgan Chase, and Goldman Sachs will be the lead underwriters. When Facebook was choosing underwriters, they were made varying..
A student surveyed 200 students about hours a night spent sleeping, the data showed a normal distribution with a mean of 6.8 hours and a standard deviation of 0.75 hours. what percentage of the students spent less than 4.55 hours sleeping per..
A local ice-cream store receives an average of 3 customers per hour. Assume that the arrival events are well described by Poisson distribution. The cashier wants to leave the store to run an errand. The manager computes the expected time T between..
Let X be the sample mean of a random sample of size n from a uniform distributionon the interval [0, b], and let bb = 2X be an estimator of the upper endpoint b.(a) Demonstrate that bb is an unbiased estimator of b, and find the variance of th..
Make a histogram of the data using a bar width
Each of the following proportions is based on survey responses. For each proportion, use the ±2 rule of thumb to determine the 95 percent confidence interval. When asked if they are satisfied with their financial situation, .29 said "very satisfied" ..
Write the null and alternative hypotheses and analyze the data using PROC TTEST, and turn in the printout. From this, you will first have to test if the population variances are equal.
The personnel director of a large corporation wants to study absenteeism among clerical workers at the corporation's central office during the year. A random sample of 25 clerical workers reveals the following. Absenteeism: X=9.7 days, S=4.0 days. 12..
Hypothesis test in the research hypothesis is specific about the difference but with no direction specified for the difference is a (n)?
A variety of climbing and mountaineering equipment.
Data were collected in a clinical trial to compare a new drug
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