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If Amy has no idea which of the three mileage assumptions is most appropriate, what is the recommended decision (leasing option) using the optimistic, pessimistic, and minimax regret approaches?
find the probability that (i) the student took mathematics or history; (ii) the student does not take either of these subjects; (iii) the student takes history but not mathematics.
What is the probability that the sample mean will be between M = 510 and M = 520? In symbols, what is p (510 < M < 520)?
The manufacturer can only find 29 people with the condition currently untreated. the mean heart rate is 90 beats per minute with a standard deviation of 5.find the 98% confidence interval for the tr
If you were told that on a particular day it was raining in Vancouver, what would be the probability that this day would be a winter day?
Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.
at a used book store sale, 50 books are adult books and 160 are children's books. of the adult books 20 are nonfiction and of the children's books 103 are nonfiction.if a book is selected at random,
The sample mean was found to be 194 pounds with a standard deviation of 11.2 pounds. What percentage of men have weights between 175 and 2235 pounds?
Simulate this problem using the Monte Carlo process. Show the demand during lead time (DDLT) for 30 reorders and determine the expected demand during lead time.
if the next year will be a good year with probability .4 or a bad year with probability .6, find the expected value and variance of the number of storms that will occur.
Assuming a normal distribution, find the probability that the average saturated content would be less for the random sample of cereal bars.
Cornell University conducted a study of wage differentials between men and women reported that one reason that men's wages are higher is that men tend to have more years of work experience than wome
In an agricultural experiment, a large field of wheat was divided into many plots. Find the probability that any one randomly selected plot yield is greater than 90 lb.
It has been estimated that about 30% of frozen chicken contain enough salmonella bacteria to cause illness if improperly cooked. A consumer purchases 12 frozen chickens. What is the probability that
The probability that a house in an urban area will be burglarized is 5%. If 50 houses are randomly selected, what is the probability that one of the houses will be burglarized?
However, if they lose the first contract, the president thinks that the probability of winning the second contract decreases to 48%. What is the probability that they win both contracts?
my z scores is .5199, the mean is 49.51. my standard deviation is 14.3. find probability that a person travels less than 48.75 minutes.
Calculate the limits within which the weight of the packets should lie assuming that the machine is not been classified as faulty.
Test the hypothesis, at the 0.05 level of significance, that the size of a family is independent of the level of education attained by the father.
A survey of 350 lobster fisherman found that they catch an average of 32 pounds of lobster per day. What is the probability that a single fisherman's catch is less than 31.5 pounds?
Customer waiting time has been a major concern to management. An hour of customer's waiting time (prior to and during service) is valued at $3. Management is considering three alternatives to minimi
Your total sample size is 1,000: (a) How many from each country must your sample include? Extend your multiplier to five decimal places to get as much accuracy?
What effect does the value of the smoothing constant have on the weight given to the past forecast and the past observed value? explain what would happen if the smoothing constant in an exponential
police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.49, 0.39, 0.08, and 0.04, respectively. Find the standard deviation for the prob
A history professor decides to give a 10-question true-false quiz. She wants to choose the passing grade such that the probability of passing a student who guesses on every question is less than 0.1