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At Community Hospital, the burn center is experimenting with a new plasma compress treatment. A random sample of n₁ = 403 patients with minor burns received the plasma compress treatment. Of these patients, it was found that 306 had no visible scars after treatment. Another random sample of n₂ = 606 patients with minor burns received no plasma compress treatment. For this group, it was found that 567 had no visible scars after treatment. Let p₁ be the population proportion of all patients with minor burns receiving the plasma compress treatment who have no visible scars. Let p₂ be the population proportion of all patients with minor burns not receiving the plasma compress treatment who have no visible scars. (a) Find a 99% confidence interval for P₁ P2. (Use 4 decimal places.) Lower Limit Upper Limit (b) Choose the correct conclusion Owe can not say that there is a higher proportion of patients with no visible scars among those who received the treatment. O we can say with 99% confidence that there is a higher proportion of patients with no visible scars among those who did not receive the treatment. Owe can say with 99% confidence that there is a higher proportion of patients with no visible scars among those who received the treatment.

At Community Hospital, the burn center is experimenting with a new plasma compress treatment. A random sample of n₁ = 403 patients with minor burns received the plasma compress treatment. Of these patients, it was found that 306 had no visible scars after treatment. Another random sample of n₂ = 606 patients with minor burns received no plasma compress treatment. For this group, it was found that 567 had no visible scars after treatment. Let p₁ be the population proportion of all patients with minor burns receiving the plasma compress treatment who have no visible scars. Let p₂ be the population proportion of all patients with minor burns not receiving the plasma compress treatment who have no visible scars. (a) Find a 99% confidence interval for P₁ P2. (Use 4 decimal places.) Lower Limit Upper Limit (b) Choose the correct conclusion Owe can not say that there is a higher proportion of patients with no visible scars among those who received the treatment. O we can say with 99% confidence that there is a higher proportion of patients with no visible scars among those who did not receive the treatment. Owe can say with 99% confidence that there is a higher proportion of patients with no visible scars among those who received the treatment.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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At Community Hospital, the burn center is experimenting with a new plasma compress treatment. A random sample of n₁ = 403 patients with minor burns received the plasma compress treatment. Of these patients, it was found that 306 had no visible scars after treatment. Another random sample of n₂ = 606 patients with minor burns received no plasma compress treatment. For this group, it was found that 567 had no visible scars after treatment. Let p₁ be the population proportion of all patients with minor burns receiving the plasma compress treatment who have no visible scars. Let p₂ be the population proportion of all patients with minor burns not receiving the plasma compress treatment who have no visible scars. (a) Find a 99% confidence interval for P₁ P2. (Use 4 decimal places.) Lower Limit Upper Limit (b) Choose the correct conclusion Owe can not say that there is a higher proportion of patients with no visible scars among those who received the treatment. O we can say with 99% confidence that there is a higher proportion of patients with no visible scars among those who did not receive the treatment. Owe can say with 99% confidence that there is a higher proportion of patients with no visible scars among those who received the treatment.
Transcribed Image Text:At Community Hospital, the burn center is experimenting with a new plasma compress treatment. A random sample of n₁ = 403 patients with minor burns received the plasma compress treatment. Of these patients, it was found that 306 had no visible scars after treatment. Another random sample of n₂ = 606 patients with minor burns received no plasma compress treatment. For this group, it was found that 567 had no visible scars after treatment. Let p₁ be the population proportion of all patients with minor burns receiving the plasma compress treatment who have no visible scars. Let p₂ be the population proportion of all patients with minor burns not receiving the plasma compress treatment who have no visible scars. (a) Find a 99% confidence interval for P₁ P2. (Use 4 decimal places.) Lower Limit Upper Limit (b) Choose the correct conclusion Owe can not say that there is a higher proportion of patients with no visible scars among those who received the treatment. O we can say with 99% confidence that there is a higher proportion of patients with no visible scars among those who did not receive the treatment. Owe can say with 99% confidence that there is a higher proportion of patients with no visible scars among those who received the treatment.
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