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Q Search this course My Hme Cwrs C*dog md Tods Tps Cree %cczs Tps Hdp GWe CENGAGE I MINDTAP Chapter 7 Assignment 8. Thirty-five percent of all Americans drink boffed water more than once a week (Natural resources Defense Council, December 4, 2015). Suppose you have been hired by the Natural Resources Defence Council to investigate bottled water consumption in St. Paul You plan to select a sample of St- Paulites to estimate the proportion who drink bottled water more than once a week. Assume the population proportion of St. Paulites who drink bottled water more than once a week is 0.35, the Same as the overan proportion of Americans who drink bottled water more than once a week. Use z-table. a. Suppose you select a sample of 540 St.Pauutes. Show the sampling distribution of (to 4 decimals). = 0.35 0.0205 b. Based upon a sample of 540 St. Paulites, what is the probability that the sample proportion will be within 0.02 of the population proportion (to 4 decima's) probability 0.6730 c. Suppose you select a sample of 150 St,Paulites, Show the sampling distribution of (to 4 decima's). 40389 d. Based upon a smatter sample of onw 150 St Paulites, what is the probability that the sample propomon w"' be within 0.02 or the popo'at'on proportion (to 4 decima's), probability e. As measured by the increase in proba>ility. how much do you gain in precision by taking the larger samp'e in parts (a) and (b) rother than the sma'ler samp'e in parts (c) and precision by increasing the Szmp'e. O A-Z