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Question: A CNN/Time poll conducted in the United States October 23-24, 2002, asked, "Do you favor or oppose the legalization of marijuana?" In the nationwide poll of n = 1007 adults, 34% said that they favored legalization. The margin of error was given as 3.1% (Source: https://www.pollingreport.com).
a. Find a 95% confidence interval estimate of the percentage of American adults who favored the legalization of marijuana at the time of the poll.
b. Write a sentence that interprets the interval computed in part (a).
Given the following number of hours between breakdowns for 4 machines, are the machines significantly different? If so, how are they different? Which machine is the best?
a test has a mean of 104 and a standard deviation of 16. we want to be 98 certain that we are within 4 points of the
Use the two lists of valid syllogistic forms to determine whether each is valid from the Boolean standpoint, valid from the Aristotelian standpoint, or invalid.
Two cards are picked in succession (without replacement) from a standard deck. If o is an outcome, let X(o) equal the sum of the numbers on the cards.
How large a sample should she take if she does not want the acceptance rate of the sample to deviate from that of the population by more than six percentage points? State your assumptions in computing the required sample size.
The Delphi method solicits input from customers or potential customers regarding their future purchasing plans.
the probability that a military system is in an in-control condition is 0.96 and that it is in an out-of- control
A certain college gives aptitude tests in the sciences and the humanities to all entering freshmen. If X and Y are, respectively, the proportions of correct answers that a student gets on the tests in the two subjects, the joint probability distr..
Display 10.19 summarizes results from the regression of the log of the number of butterfly species observed on the log of the size of the reserve and the number of days of observations, from 16 reserves in the Amazon River Basin.
Assume that a 95% confidence interval estimate of the population mean annual starting salary is required. What is the planning value for the population standard deviation?
el nino and the monsoon. the earth is interconnected. for example it appears that el nino the periodic warming of the
What would the control limits be for a type I error rate of 0.05? What factors would influence your selection of the type I error rate?
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