?1.The table to the right shows the results of a survey in which 2553a

?1.The table to the right shows the results of a survey in which 2553adults from Country? A, 1140adults from Country? B, and 1064adults from Country C were asked if human activity contributes to global warming. Complete parts? (a), (b), and? (c).country A=67% country B=87% country c=91%a.) Construct a 99% confidence interval for the proportion of adults from Country Upper Awho say human activity contributes to global warming. _,_2.The table shows the results of a survey in which separate samples of 400 adults each from the? East, South,? Midwest, and West were asked if traffic congestion is a serious problem in their community. Complete parts? (a) and? (b).East-37% South 33% Midwest 26% West 53%a)Construct a? 95% confidence interval for the proportion of adults from the Westwho say traffic congestion is a serious problem. The? 95% confidence interval for the proportion of adults from the Westwho say traffic congestion is a serious problem is _,_3. Construct the confidence interval for the population mean uc=0.98 x=7.5 o=0.3 n =46A) A 98?% confidence interval for is _,_

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