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answerhappygod
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In an article about unusual allergies, a doctor explained that allergy to sulfites is usually seen in patients with asthma. The typical reaction is a sudden increase in asthma symptoms after eating a food containing sulfites. Studies are performed to estimate the percentage of the nation's 10 million asthmatics who are allergic to sulfites. In one survey, 37 of 500 randomly selected asthmatics in the country were found to be allergic to sulfites. A 95% confidence interval for the proportion, p, of all asthmatics in the country who are allergic to sulfites, was found to be 0.051 to 0.097. Complete parts (a) through (f). Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. The sample size would need to be at least (Round up to the nearest whole number.) c. Find a 95% confidence interval for p if, for a sample of the size determined part (b), the proportion of asthmatics sampled who are allergic to sulfites is 0.069. The 95% confidence interval of all asthmatics in the country who are allergic to sulfites is from to (Round to three decimal places as needed.) d. Determine the margin of error for the estimate in part (c) and compare it to the margin of error specified in part (b). The margin of error in part (c) is, which is the margin of error specified in part (b). (Round to three decimal places as needed.) e. Repeat parts (b)-(d) if you can reasonably presume that the proportion of asthmatics sampled who are allergic to sulfites will be at most 0.10. Repeat part (b) by obtaining a sample size that will ensure a margin of error of at most 0.01 for a 95% confidence interval if you can reasonably presume that the proportion of asthmatics sampled who are allergic to sulfites will be at most 0.10. The sample size would need to be at least (Round up to the nearest whole number.) Repeat part (c) by finding a 95% confidence interval for p if, for a sample of the size determined in the previous step, the proportion of asthmatics sampled who are allergic to sulfites is 0.069. The 95% confidence interval of all asthmatics in the country who are allergic to sulfites is from to (Round to three decimal places as needed.) Repeat part (d) by determining the margin of error for the confidence interval in the previous step. The margin of error in the previous step is (Round to three decimal places as needed.) f. Compare the results you obtained in parts (b)-(d) with those obtained in part (e). In parts (b)-(d) there an assumed guess for the observed value of p, while in part (e), there the confidence interval when there was an assumed value. The margin of error with no assumed value was an assumed value. The sample size with no assumed value was the margin of error when there was an assumed value. ▼the sample size when there was an assumed value. The confidence interval with no assumed value was
In an article about unusual allergies, a doctor explained that allergy to sulfites is usually seen in patients with asthma. The typical reaction is a sudden increase in asthma symptoms after eating a food containing sulfites. Studies are performed to estimate the percentage of the nation's 10 million asthmatics who are allergic to sulfites. In one survey, 37 of 500 randomly selected asthmatics in the country were found to be allergic to sulfites. A 95% confidence interval for the proportion, p, of all asthmatics in the country who are allergic to sulfites, was found to be 0.051 to 0.097. Complete parts (a) through (f). Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. The sample size would need to be at least (Round up to the nearest whole number.) c. Find a 95% confidence interval for p if, for a sample of the size determined part (b), the proportion of asthmatics sampled who are allergic to sulfites is 0.069. The 95% confidence interval of all asthmatics in the country who are allergic to sulfites is from to (Round to three decimal places as needed.) d. Determine the margin of error for the estimate in part (c) and compare it to the margin of error specified in part (b). The margin of error in part (c) is, which is the margin of error specified in part (b). (Round to three decimal places as needed.) e. Repeat parts (b)-(d) if you can reasonably presume that the proportion of asthmatics sampled who are allergic to sulfites will be at most 0.10. Repeat part (b) by obtaining a sample size that will ensure a margin of error of at most 0.01 for a 95% confidence interval if you can reasonably presume that the proportion of asthmatics sampled who are allergic to sulfites will be at most 0.10. The sample size would need to be at least (Round up to the nearest whole number.) Repeat part (c) by finding a 95% confidence interval for p if, for a sample of the size determined in the previous step, the proportion of asthmatics sampled who are allergic to sulfites is 0.069. The 95% confidence interval of all asthmatics in the country who are allergic to sulfites is from to (Round to three decimal places as needed.) Repeat part (d) by determining the margin of error for the confidence interval in the previous step. The margin of error in the previous step is (Round to three decimal places as needed.) f. Compare the results you obtained in parts (b)-(d) with those obtained in part (e). In parts (b)-(d) there an assumed guess for the observed value of p, while in part (e), there the confidence interval when there was an assumed value. The margin of error with no assumed value was an assumed value. The sample size with no assumed value was the margin of error when there was an assumed value. ▼the sample size when there was an assumed value. The confidence interval with no assumed value was