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A population consists of 50 children, 40 youths and 10 adults. What is the chance that a youth will be chosen first to represent the sample?
Conduct a hypothesis to test the state of CT's claim.
A local health care company wants to estimate the mean weekly elder day care cost. A sample of 10 facilities shows a mean of $250 per week with a standard deviation of $25. What is the 90 percent confidence interval for the population mean?
Find the probability that a value randomly selected from this population will have a value between 90 and 130.
There are two car dealerships in a particular region. The mean monthly sales at the two dealerships are about the same. Though, one of the dealerships (dealership A) is boasting to corporate headquarters that his dealership's monthly sales are mor..
The mean score on a 25-point placement exam in mathematics used for the past two years at a large state university is 14.3.
Find a hyperplane H(α, β) strictly separating x from S; i.e., x is in the interior of H +(α, β), and S is in the interior H -(α, β).
Sixty-eight percent of online courses taught at community colleges nationwide were taught by full-time faculty. To test if 68% also represents California's.
The option to buy extended warranties is commonplace with most electronics purchases.But does the type of purchase affect a consumer's willingness to pay extra for an extendedwarranty? Data for 420 consumers who purchased big screen TVs and la..
What is the probability of rolling a number equal to or greater than 3 on each of six rolls of a single die? What is the probability of rolling a number less than 3 on each of six rolls of the die?
Descriptive statistics for given data - Evaluate the range, variance, and standard deviation of the data set. Interpret the results in the context of the real-life setting.
A construction firm finally has got their order from an internet shop-4 identically looking boxes. In the first box there are 7 tool kits for electricians.
What is the probability that a random sample of 49 different one-hour shopping periods will yield a sample mean between 441 and 446 shoppers?
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