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1. The mean number of errors per page made by a member of the word processing pool for a large company is thought to be 1.5 with the number of errors distributed according to a Poisson distribution. If three pages are examined, what is the probability that more than 3 errors will be observed?
2. Arrivals to a bank automated teller machine (ATM) are distributed according to a Poisson distribution with a mean equal to three per 15 minutes.
a. Determine the probability that in a given 15-minute segment no customers will arrive at the ATM.
b. What is the probability that fewer than four customers will arrive in a 30-minute segment?
3. Consider a situation in which a used-car lot contains five Fords, four General Motors (GM) cars, and five Toyotas. If five cars are selected at random to be placed on a special sale, what is the probability that three are Fords and two are GMs?
Assume that you are conducting a survey of customer satisfaction regarding their cellular phone.
question 1 a breeder records probabilities for two variables in a population of animals using the two-way tablegiven
Suppose that a person searches through leaves on a tree until he finds one with at least two eggs. Letting X = the number of leaves searched, what is the expected value and variance of X?
Why is expectation important? Explain what the expected value of an experiment or a business represents. What does it mean to have an expected value of 0? Provide an example of expectation and the use of the formula for expected value.
Identify the variable of interest and the unit of measurement and what proportion of reaction times are less than 2.00 seconds?
a potato chip manufacturer samples 13 bags of potato chips off the assembly line and weighs their contents. if the
in a test for esp extrasensory perception a subject is told that cards the experimenter can see but he cannot contain
Discuss an element of drinking water where you see a public health gap or need that should be addressed. You may bring up a specific case relevant to your community if you have one, or bring up a global issue.
in order to increase revenue many video game publishers sell downloadable content dlc separately from the main game.
Box 1 has 3 chips numbered 1,2,3. Box 2 has 2 chips numbered 1 and 2. Suppose a chip is randomly selected from box 1 and placed in box 2.
Use the five steps of hypothesis testing to determine whether the observed differences in the number of activities in the following table performed by the three groups are statistically significant at the .05 level of significance. Clearly indicat..
30% of the college of business students major in finance. A random sample of 20 students is selected. What is the probability that no more than 3 students of the selected students are majoring in finance?
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