Question

I think A and B are right but I'd like to see what you get, having a lot of trouble with the rest of the problem

Check My Wo g Thirty-seven percent of all American drink bottled water more than once a week (Natural resources Defense Council, December 4, 2015). Suppose you have been hired by the Natural Resource Defence Cound to investigate boed water consumption in St. Paul You plan to select a sample of St Pautes to estimate the proportion who drink bottled water more than once a week. Assume the port of the who l e w ore the Once a week is 0.3T, the same as the overall proportion of Americans who drink bottled water more than once a week user-table - Suppose you select a sample of 540 St. Pies Show the sampling distribution of the decimals). EP) 0.3700 0.0208 b. Based upon a sample of St. Paulits, what is the probability that the sample proportion will be within 0.07 of the population proportion to decimal) probability - 1.0000 Suose you select a sample of 200 L es Show the same darbution of the decimal () that the proprio 200 dawon ma samo

Answer 1

(6) P (-0.0 t < Z 200208 ) = P(-3.37 < 2 a 8.37) = P(Z < 3.37) P(Z = -3.37) -0.9996 - 0.0004 = 0.9992 (c) E(P) = 0.3700 Op = 0.31 (-0.377 $ 20.0341 0.0bul 0.0341 = P(-2.05 - 2 - 2.05) = P(Z 22.05) -P (z <-2.05) = 0.9798 -0.0202 - (0.9596 c) Reduced by 10.0396] tave gain in precision by increasing the sample