The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 20 who smoke. Step 1 of 2 : Suppose a sample of 966 Americans over 20 is drawn. Of these people, 783 don't smoke. Using the data, estimate the proportion of Americans over 20 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places.
Solution: Americans over 20 is drawn sample = 966,
don't smoke = 783
smoke = 966 - 783 = 183
The proportion of Americans over 20 smoke is 0.189
=> p = X/n = 183/966 = 0.1894
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the...
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 4444 who smoke. Step 1 of 2: Suppose a sample of 632632 Americans over 4444 is drawn. Of these people, 170170 smoke. Using the data, estimate the proportion of Americans over 4444 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places. The American Heart Association is about to conduct an anti-smoking campaign...
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 22 who smoke. Step 2 of 2 : Suppose a sample of 966 Americans over 22 is drawn. Of these people, 802 don't smoke. Using the data, construct the 98% confidence interval for the population proportion of Americans over 22 who smoke. Round your answers to three decimal places.
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 28 who smoke Step 1 of 2: Suppose a sample of 369 Americans over 28 is drawn. Of these people. 299 don't smoke. Using the data, estimate the proportion of Americans over 28 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places. Answer 4 Points ■ Tables | Keypad is about to...
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 48 who smoke. Step 1 of 2: Suppose a sample of 1083 Americans over 48 is drawn. Of these people, 205 smoke. Using the data, estimate the proportion of Americans over 48 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places.
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 47 who smoke. Step 1 of 2: Suppose a sample of 861 Americans over 47 is drawn. Of these people, 577 don't smoke. Using the data, estimate the proportion of Americans over 47 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places. Step 2 of 2: Suppose a sample of 861 Americans...
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 50 who smoke. Step 1 of 2: Suppose a sample of 383 Americans over 50 is drawn. Of these people, 284 don't smoke. Using the data, estimate the proportion of Americans over 50 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places. Step 2 of 2: Suppose a sample of 383 Americans...
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 33 33 who smoke. Step 1 of 2: Suppose a sample of 1083 Americans over 33 is drawn. Of these people, 184 smoke. Using the data, estimate the proportion of Americans over 33 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places. Step 2 of 2: Suppose a sample of 1083 Americans...
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 46 who smoke. Step 2 of 2 : Suppose a sample of 1089 Americans over 46 is drawn. Of these people, 774 don't smoke. Using the data, construct the 85% confidence interval for the population proportion of Americans over 46 who smoke. Round your answers to three decimal places.
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 44 who smoke. Step 2 of 2: Suppose a sample of 1421 Americans over 44 is drawn. Of these people, 967 don't smoke. Using the data, construct the 90% confidence interval for the population proportion of Americans over 44 who smoke. Round your answers to three decimal places.
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 25 who smoke. Step 2 of 2 : Suppose a sample of 10891089 Americans over 25 is drawn. Of these people, 730 don't smoke. Using the data, construct the 85% confidence interval for the population proportion of Americans over 25 who smoke. Round your answers to three decimal places. Low? and High?