Mathematics, 24.10.2019 05:00 EDWIN6067
Two ad agencies want to understand issues that are important to students. agency a will interview 50 students whose names are randomly chosen from school enrollment data. agency b will interview 50 randomly selected people from those who respond to a social media posting. which method will produce a fair sample of the student population and why?
a. agency a, because students are convenient and easy to interview
b. agency a, because names randomly selected from school data will be student names
c. agency b, because people who respond to social media postings have strong opinions
d. agency b, because people who respond to social media postings are usually students
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Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. find the probability of drawing a white or red marble on the first draw. 125 12 01 next question ask for turn it in
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The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to
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Two ad agencies want to understand issues that are important to students. agency a will interview 50...
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