Mathematics, 25.12.2019 02:31, dawsoncarlisle
Tv advertising agencies face increasing challenges in reaching audience members because viewing tv programs via digital streaming is gaining in popularity. the harris poll reported on november 13, 2012, that 53% of 2343 american adults surveyed said they have watched digitally streamed tv programming on some type of device.
a. calculate and interpret a confidence interval at the 99% confidence level for the proportion of all adult americans who watched streamed programming up to that point in time.
b. what sample size would be required for the width of a 99% ci to be at most .05 irrespective of the value p?
Answers: 2
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Order 1100000, 314000, 965000, 1890000, from least to greatest.
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Random variables x poisson~ ( a) ,y poisson ~ ( a) . x and y are independent. if 2 1, 2 1. u =2x+ y-1, v=2x- y +1. find: ) cov (u ,v ).
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Tv advertising agencies face increasing challenges in reaching audience members because viewing tv p...
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