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Let A, B, and C be independent random variables, uniformly distributed over [0,4 ], [0,2], and [0,3] respectively. What is the probability that both roots of the equation Ax^2 + Bx + C = 0 are real?
anna sheehan is the manager of the spend wise supermarket chain. she would like to be able to predict paperback book
What is the best prediction for the number of complaints that will be registered for an installer who takes five sick days during the period and correlation between number of sick days and number of customer complaints statistically ..
Explain the difference between the null hypothesis and the alternate hypothesis. How is the null hypothesis chosen (why is it null)? What is the importance of rejecting the null hypothesis in relation of the sample to the population?
suppose that we are testing h0 micromicro0 vs. h1 microgtmicro0 with a sample size of n15. calculate bounds on the
Explain why an observed value of 250 hours is not unusual for an individual light bulb, even though it is outside the confidence interval you calculated.
the mean and the standard deviation of the sample of 100 bank customer waiting times in table 1.8 are xbar5.49 and
A random sample of 85 group leaders and supervisors revealed that they worked an average of 6.5 years before being promoted. The population standard deviation was 1.7 years. Using the 0.95 degree of confidence, what is the confidence interval for ..
a researcher believes that women today weigh less than in previous years. to investigate this belief she randomly
a sample of 250 observations is selected from a normal population for which the population standard deviation is known
What is the probability that the second one selected is defective given that the first one was defective? (c) What is the probability that both are defective?
the number of customers at quiet morning bakery is believed to follow a poisson distribution with a mean of 2 customers
Advantage of season changes in the United States
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