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Suppose z is standard normal random variable. Calculate the following possibilities.
a.p(z>1.5)
b.p(-0.33 <z <1.33)
c. p(|z| <1)
d.p(|z| >2)
e. p(3z+1>1.5)
f. p(z>0)
The lifetime of zzz batteries are normally distributed with a mean of 270 hours and a standard deviation of 10n hours. Find the number of hours that represent the 40 th percentile.
a doctors office staff studied the waiting times for patients who arrive at the office with a request for emergency
Market researchers would like to know if customers prefer a well-known brand over a generic brand of soft drink. They give a large sample of people the two drinks to taste in a random order and ask them which one tastes better.
1. State the null and research hypotheses
the global fisherypacks shrimps that weigh more than 1.91 ounces each in packages marked largeand the shrimp that
Let"s consider the very large database of individual incomes from the Bureau of Labor Statistics as our population. It is strongly right skewed. How large a sample size?
The administration of Midwest State University wants to know if arrangement of chairs affects student participation in classrooms. What would be a good operational definition of the dependent variable in an experiment designed to measure this rela..
Arthur Schopenhauer, which view of experience seems closest to how you view the world? Briefly explain this philosopher's view as it compares to your view.
Your office has just received 110 insurance claims to be processed in the next few days. What is the probability that fewer than 45 of the claims have been padded?
the distribution of the amount of money in savings accounts for university of miami students has an average of 1100
Looking at sample distribution from part b, find out how big treatment effect is. Specifically, determine the distance between sample mean and original population mean?
an accounting firm has noticed that of the companies it audits 85 show no inventory shortages 10 show small inventory
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