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Q1) Miramar Company is considering contracting with market research firm to do survey to find out future market conditions. Results of survey will point to either positive or negative market conditions. There is .60 probability of positive report, given favourable conditions; a .30 probability of positive report, given stable conditions; and.10 probability of positive report, given unfavourable conditions. There is.90 probability of negative report, given unfavourable conditions;.70 probability, given stable conditions; and.40 probability, given favourable conditions. Using decision tree analysis and posterior probability tables, find out the decision strategy company must follow, expected value of strategy, and maximum amount the company must pay market research firm for survey results.
A sample of 23 European countries found that variance of life expectancy was 7.3 years. Determine the 95% confidence interval estimate for variance of life expectancy in Europe?
Compute a 3-month moving average forecast of demand for April through January (of the next year).
What is the probability that the average IQ, from a random sample of 64 individuals, is greater than 102?
Find the probability that at least one subject experiences headaches. Is it unusual to have at least one of six subjects experience headaches?
The chi-square goodness of fit test can be used when we:
There is no proof the new policy is more effective, but we cannot finish the policy has no effect on smog. Interpretation of P-value for the given context.
Determine the rejection region for the hypothesis Ho : mean D= 0 if H a : mean D > 0. Use a = 0.01. z>
Estimate with 95% confidence the mean reduction in time it takes for someone who has taken the sleeping pill to fall asleep.
Survey on What do you think is the biggest problem facing education today. One problem with exit polls may be that the wrong "key precincts" were chosen.
Probability using discrete distribution.The probability distribution for the random variable x follows.
What is the best estimate of the average tread life for the entire population of these tires?
Below, explicitly state slope of your trend line and describe what value of slope signifies in terms of this context.
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