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Question: Two software companies, Micro Ware and BusiCorp, are preparing a new business package in time for a computer trade show 180 days in the future. They work independently. Micro Ware has anticipated completion time, in days, exponential (1/150). BusiCorp has time to completion, in days, exponential (1/130). What is the probability both will complete on time; that at least one will complete on time; that neither will complete on time?
The company producing the Polluter must reduce the nitrogen oxide level so that at most 5% of its cars exceed the EPA level of 2.7 g/m. If the standard deviation remains 0.3 g/m, to what value must the mean level be reduced so that at most 5% of P..
fatal errors that require a system reboot occur an average of 7 times per week. the system runs 24 hours a day 7 days a
Someone tells you that 50% of the tickets in the box show positive numbers. Do you believe it? Answer yes or no, and explain.
For this sample, you found that the average return was 13.5% and the standard deviation was 1%. Test Pollard's claim at α = 0.05. What assumptions are you making in this problem?
A machine that cuts corks for wine bottles operates in such a way that the distribution of the diameter of the corks produced is well approximated by a normal distribution with mean 3 cm and standard deviation 0.1 cm.
The Ntional Lightning Detection Newtowk uses automatic sensors to watch for lightning in areas of 10 square kilometers. What are the mean and standard deviation of the total number of lightning strikes observed?
Is there any evidence to suggest the mean LOA has increased? Use a = 0.01.- Does your answer to part (a) change if a = 0.1? Why or why not?
Explain whether or not the Empirical Rule would apply to the remaining data if the outlier(s) were removed from the dataset.
Estimate the number of cards in the sample for which Clara correctly guesses the suit by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable). Do not round your response.
Find the cumulative distribution function of X.- What is the probability that either four or five orders will arrive in a given week?
XTRA Inc. has beginning-of-the-year present values for its projected benefit obligation and market-related values for its pension plan assets.
You are presented a 90% confidence interval for the difference in population mean scores (with drug - without drug) of (-17.81, -7.24). What can you conclude from this interval?
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