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Lynn Rasmussen is deciding what sports car to purchase. In reflecting about the situa tion, it becomes obvious that after a few years Lynn may elect to trade in the sports car for a new one, although the circumstances that might lead to this choice are uncertain. Should trading in the car count as an uncertain event or a future decision? What are the implications for building a requisite model of the current car-purchase decision if trad ing in the car is treated as an uncertain event? As a decision?
Mean 1400 grams and standard deviation 20 grams. Find positive numbers a and b such that Y=a+bX has a mean 0 and standard deviation.
(a) Find a 90% con?dence interval for the true proportion of defectives in the lot. (b) Is the assumption of normal approximation valid?
Frequently, tests tha yeild abnormal results are repeated for confirmation. What is the probability that for a normal person a test will be at least 1.5 times as high as the upper limit of normal on two seperate occasions.
q1. blackjack tablea standard deck of playing cards contains 52 cards divided equally into four suits spades hearts
A company buys 100 lightbulbs, each of which has an exponential lifetime of 1000 hours. What is the expected time for the first of these bulbs to burn out?
The test results indicate that the disease is present. What is the probability that the person actually has the disease?
a local market research company has been hires to collect data about the salaries of recent college graduates. based on
Find out the p-value associated with test of hypothesis you conducted?
Too much cholesterol in the blood increases the risk of heart disease. Young women are generally less afflicted by high cholesterol than other groups. The cholesterol levels for women aged 20 to 34 follow an approximately Normal distribution with mea..
assume that you have a box with an equal number of 4 6 8 chips.a. find the population mean and the standard
suppose x has density function fx for aleqxleqb and ycxd where cgt0. find the density function of
a statiscal abstract includes the average per captia income for each of 15 states. when those 15 valuse are added then
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