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Shoppers enter Hamilton Place Mall at an average of 120 per hour, and the number and shoppers is Poisson distributed.
a. What is the probability that exactly 25 shoppers will enter the mall between noon and 12:10 p.m.?b. What is the probability that at least 5 shoppers will enter the mall between 5:00 and 5:05 p.m.?
The singer has the following variety of songs, in no particular order: 7 relationship songs, 6 songs about people, 4 reflective songs, and 4 songs about places.
Make up the ages of a group of participants who are freshman, sophomores, juniors, and seniors. You will need the age of 10 participants across each level.
the value of 13.0 for sample mean results in null hypothesis not being rejected. That corresponds to confidence interval result of?
At a probability of type 1 error of 0.05, test the claim that the assistant professors earn more than $42000 per year. the standard deviation of the population is $5230.
The mean and the standard deviation of a sample of 100 bank customer waiting times are 5.46 and 2.475 minutes, respectively. a) Assuming the distribution is bell-shaped, calculate the waiting time intervals containing 68% and 95% of bank customer w..
A personal computer manufacturer is interested in comparing assembly times for two keyboard assembly processes. Assembly times can vary considerably from worker to worker, and the company decides to eliminate this effect by selecting a random samp..
For a normal random variable X with mean 70 and standard deviation 10. Calculate the probability that 60 80}.
For population with mean of µ=60 and a standard deviation of s=24. Determine the z score corresponding to each of following samples.
A multicenter clinical trial involving 17,000 patients suspected of having acute myocardial infarction was conducted. The vascular death rate after 5 weeks was compared in patients receiving aspirin versus those not receiving aspirin
Determine the probability distribution associated with these data.
The number of students that enroll in a psychology course is a poisson random variable with mean 100.the course incharge has decided that if the enrolling is 120 or more he will teach the course in two separate sections.
Is the GPA of this year's students significantly different from the long-run average? At what alpha level would it be significant?
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