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Problem 1: A coin (not necessarily fair) will be tossed once, and you have to predict the outcome. If you predict the outcome correctly you win $1000. Otherwise, you lose $5.
(a) What are the states of nature? What is the decision space? Write the utility table.
(b) Suppose that you believe that the probability of heads is 2/3. What is your price for the states of nature? Find the expected gains.
(c) Suppose that you are allowed to toss the coin twice and you ?nd that the ?rst toss results in heads and the second in tails. What are the observables?
(d) Assume the situation in (c). The coin is going to be tossed again and you have to predict the outcome. What is your updated prior?
(e) What are your expected gains, and what is your decision for the situation in (d)?
We would like to test if the proportion of respondents that support the health care bill is less than 50% (a) what kind of hypothesis test is appropriate?
Write down the estimated regression equation, and verbally interpret the intercept and the slope coefficients (in terms of geysers and eruption times).
Which component of a time series is most likely to occur? Which component has a pattern that must be complete in a single year and repeat from year to year?
It is given that 60% of the employees at a large company are women. A simple random sample of 15 employees is selected from this company.
a market survey was conducted to estimate the proportion of homemakers who would recognize the brand name of a cleanser
While 290 out of 400 in Batavia preferred the same flavor. To test the hypothesis that there was no difference in preferences in the two towns, what is the alternate hypothesis?
Your friend also takes the test and obtains a score of 161.42 and is told that he is in the 22.8th percentile. What is overall mean and standard deviation of the test scores?
The demand for airplane passengers (Y) is a function of a average fare (X1), the fare of the competing airline, and the annual per capital income of the passengers(X3)
in an investigation of environmental causes of disease data were collected on the annual mortality rate deaths per
The next problem will be to convert these populations into pizzas sold by Lotto Pizza. Your consulting firm has already been employed to survey the population and determine the expected number of pizzas that will be purchased in both formats of op..
If there are 12 business-class passengers and 50 tourist-class passengers on a particular flight, what are the expected value of total luggage weight and the standard deviation of the total luggage weight?
on june 4-24 2007 the gallup poll asked a random sample of adult americans about their attitudes toward interracial
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