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Find the mean number of people saved by the first program. (b) Tversky then offered a different choice. One program has probability 1/2 of saving all 600 and probability 1/2 of losing all 600, while the other will definitely lose exactly 200 lives. What is the difference between this choice and that in (a)? (c) Given option (a), most subjects choose the second program. Given option (b), most subjects choose the first program. Do the subjects appear to use means in making their decisions? Why do you think their choices differed in the two cases? S4.30 The original simple form of the Connecticut state lottery (ignoring a few gimmicks) awarded the following prizes for each 100,000 tickets sold. The winners were chosen by drawing tickets at random. If you hold one ticket in this lottery, what is your probability of winning anything? What is the mean amount of your winnings?
Tourism is one consideration for CoffeeTime's future, A survey of 1,233 visitors to mumbai last year revealed that 110 visited a small cafe during their visit.
For the period from 1918 to the present, in a random sample of 13 wolves spotted in the region, what is the probability that 10 or more were male? What is the probability that 10 or more were female?
Assuming that the sample was not skewed (i.e. it was normally distributed), about how many exam scores would you expect to fall between the range of 75 to 85?
with loss function L(θ,a)= w(θ)(θ-a)^2, where w(θ) is a fixed weighted function. Determine the Bayes rule and comment on the role of w(θ) in this problem.
Find the probability that a randomly selected student is a nursing major. Find the probability that a randomly selected student is a nursing major given that the student is a male.
Find a 95% confidence interval for the true proportion of all medical students who plan to work in a rural community.
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 ..
Determine the upper and lower control chart limit and the lower control chart limit for various values of the fraction defective (p) in the sample taken. Assume a 99.7 % confidence.
State the research question and statistical null and alternative hypotheses; and Explain why this test is appropriate and why the correlation, t-test, regression, or ANOVA is not appropriate.
An independent second stage is normally distributed with a mean of 43 minutes and variance of 10 minutes. What is the probability that the two stages take over 80 minutes?
Assume that the height of adult caucasian women have a mean of 63.6 inches and a standard deviation of 2.5 inches. If 100 women are randomly selected find the probability that they have a mean height greater that 63.0 inches.
The management of a department store is interested in estimating the difference between the mean credit purchases of customers using the store's credit card versus those customers using a national major credit card.
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