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Suppose that fty-two percent of the residents of the city Eugene think that Arizona will defeat Oregon in their next college football game. Find an appropriate estimate of the probability that greater than 50 percent of a random sample of n people from Eugene are in favor of Arizona's win when:
1. n = 5.2. n = 101.3. n = 1001.4. How large would n have to be to make this probability exceed 0:95?
95% of breaking strengths will be contained between what two values symmetrically distributed around mean?
A linear regression between Y and X produced the following equation for the least squares line:
A random sample of 300 beer drinkers is selected and each member of the sample is asked to choose between two brands of beers: Brand A and Brand B. The results are that 165 prefer Brand A and 135 prefer Brand B.
Suppose that 20 minutes are selected independently and weighted. Let Y equal the number of these mints that weigh less than 30 grams.
Find the expected frequency for the number of days in which there was exactly one application. Determine the expected frequency for the other days in a similar manner.
Two tools that are often used in this process are the contingency table and the decision tree. What are these tools and how to they help us to make decisions under uncertainty when we are dealing with probabilities?
the 92 million americans of age 50 and over control 50 percent of all discretionary income aarp bulletin march 2008.
Find the probility that a randomly selected student has neigther credit card. Find the probability that a randomly selected student has a Mastercard or a Visa or both.
Simulate a completely random process of length 48 with independent, t-distributed values each with 5 degrees of freedom. Construct the time series plot. Does it look "random" and nonnormal? Repeat this exercise several times with a new simulation ..
Determine the coefficient of correlation between the two variables. Interpret the value.
The probability that house sales will increase in the next 6 months is estimated to be 0.25. The probability that the interest rates on housing loans will go up in the same period is estimated to be 0.74. The probability that house sales or intere..
a batch of 350 raffle tickets contain four winning tickets.you buy four tickets. what is the probabliltiy that you
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