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1) Sprint would like to test the hypothesis that the average revenue per retail user for T-Mobile's customers equals $50. A random sample of 32 T-Mobile customers provided an average revenue of $54.70. It is believed that the population standard deviation for the revenue per retail user is $11.00. Sprint would like to set α = 0.05. Use the critical value approach to test this hypothesis.
1. Do this exercise by hand. A famous brand-name manufacturer wants to know whether people prefer Nibbles or Wribbles. They sample each type of cracker and indicate their like or dislike on a scale from 1 to 10. Which do they like the most?
This variable represents the number of machine breakdowns during a day, based on this simulation run, what is the average number of breakdowns per day?
The expected value is within one standard deviation of themean(so you must calculate both the standard deviation and expected value for your game).
1.if your data is a random sample of size n from the distribution N(4, 7), then what is the distribution of the statistic X(not Z or T)? Z?T?
Develop a 95% confidence interval estimate of the population mean sales price and population mean number of days to sell for Gulf View condominiums. Interpret your results.
Frequency distribution from part a: Find the mean, variance and stand excldeviation and using the frequency distribution from parta: What is the probability of a randomly selected herb to have a height of at least 17 inches?
Binomial probability distribution
Develop an ordered array and plot a percentage histogram, what conclusions can you reach about the differences in the state cigarette tax between the states?
what is the point estimate for the mean hospital cost for victims who wore seat belts and construct and interpret 99percent conf interval estimate for the mean hospital costs for accident victims who wore seatbelts.
The company wants to perform a hypothesis testing. Which of the following are the right hypotheses and what is the α-risk associated with the x' chart?
Comment on the production control situations depicted by the four control charts shown on the following page, and state what action, if any, would be necessary in each case.
How much of each product do you recommend be produced that you believe maximizes revenue? How much revenue would be made if they followed your recommendation?
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