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This table provides information on estimated probabilities of unauthorized immigrants in the year 2000 coming from China or elsewhere, and coming to California or elsewhere.
a. If country of origin and state of destination were independent, what would be the probability of an unauthorized immigrant coming from China and to California?
b. If unauthorized immigrants from China were more likely than others to come to California, would the actual probability be higher or lower than your answer to part (a)?
As a project for their high school mathematics class, four class members purchase packages of a leading breakfast cereal for subsequent weighing and comparison with the 12-ounce label weight. The students are sur- prised when they weigh the con..
They are asked if they use a laptop in class to take notes. Suppose that based on the survey, 220 of the 400 students responded "yes". a) What is the value of the sample proportion ^p ? b) What is the standard error of the sample proportion?
for the following z-test statistic compute the p-value assuming that the hypothesis test is a one-tailed test z
Based on these data, is there evidence of a relationship between the account balance and the model of washer purchased? Use a significance level of 0.025.
Does the data indicate that the distribution of accidents for the three age groups is significantly different from the distribution of drivers? Test with ox=.05.
Assuming that these results are sample data randomly selected from the population of all past and future Olympic games
Johnson Medical Associates has two physicians on call practicing independently. Each physician is available to answer patients' calls for independent time.
What is the probability that a randomly selected group of 50 shoppers will spend a total of more than $5700? The total will be more than $5700 when the sample average exceeds what value?
an important factor in selling a residential property is the number of people who look through the home. a sample of 15
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a spymaster has a network of 7 operatives whom he pays out of a slush fund containing 20000. for accounting reasons his
an auditor wants to estimate what proportion of a banks commercial loan files are complete. the auditor randomly
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