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The probability that a call-centre consultant receives 3 calls during any given hour is 0.1404 and the probability that the consultant receives 5 calls during any given hour is 0.1755. Assuming that the calls are poisson-distributed, calculate the probability that the consultant receives at least 2 calls during any 30 minute period.
Assuming that n = 6 for both samples, calculate each of the sample variances, then calculate the pooled variance. Because the samples are the same size, you should find that the pooled variance is exactly halfway between the two sample variances.
The following data represent scores of 50 students in the applied business statistics test. Prepare the frequency distribution table and the frequency histogram for this data set.
You manufacture and sell an iron rod whose electrical conductivity is supposed to be 10.1. You plan to make 6 measurements of the conductivity of a rod you plan to sell.
Uniformly distributed in the interval -0.5 cents to 0.5 cents. What is the probability that the round-off error exceeds 0.3 cents or is less than -0.3 cents?
testing for population mean.atms must be stocked with enough cash to satisfy customers making withdrawals over an
In your environment (business or personal), please describe a hypothesis test related to a decision. What would be your data? What would be your null hypothesis? What would be your alternate hypothesis? What would be your Type 1 and Type 2 errors ..
If the supplier selects the pairs of earrings at random, what is the chance that the jewelry store gets exactly two sets of platinum pairs?
When I watch the weather on TV it makes me crazy that they will talk about the "average" or "normal" temperature. When they say "average" on TV weather to which of the "averages" discussed in the text are they referring?
all work must be done independently.a retrospective sample of males in a heart-disease high-risk region of the western
Using the data, construct a 95% lower confidence interval on mean battery life. Why would the manufacturer be interested in a one-sided confidence interval?
in a management trainee program 80 percent of the trainees are female 20 percent male. ninety percent of the females
Argue, given the statistical knowledge you have gained up to this point in the course, which article gives the correct answer.Incorporate appropriate animations, transitions, and graphics as well as "speaker notes" for each slide. The speaker notes m..
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