In the largest clinical trial ever conducted, 401,974 children were randomly assigned to two groups. The treatment group consisted of 201,229 children given the Salk vaccine for polio, and the other 200,745 children were given a placebo. Among those in the treatment group, 33 developed polio, and among those in the placebo group, 115 developed polio. If we want to use the methods for testing a claim about two population proportions to test the claim that the rate of polio is less for children given the Salk vaccine, are the requirements for a hypothesis test satisfied? Explain. Choose the correct answer below. ……… O A. The requirements are satisifed; the samples are simple random samples that are independent, and for each of the two groups, the sample size is at least 1000. O B. The requirements are satisfied; the samples are simple random samples that are independent, and for each of the two groups, the number of successes is at least 5 and the number of failures is at least 5. O C. The requirements are not satisfied; the difference between the rates those that developed polio in the two groups is not statistically significant. O D. The requirements are not satisfied; the samples are not simple random samples that are independent.
In the largest clinical trial ever conducted, 401,974 children were randomly assigned to two groups. The treatment group consisted of 201,229 children given the Salk vaccine for polio, and the other 200,745 children were given a placebo. Among those in the treatment group, 33 developed polio, and among those in the placebo group, 115 developed polio. If we want to use the methods for testing a claim about two population proportions to test the claim that the rate of polio is less for children given the Salk vaccine, are the requirements for a hypothesis test satisfied? Explain. Choose the correct answer below. ……… O A. The requirements are satisifed; the samples are simple random samples that are independent, and for each of the two groups, the sample size is at least 1000. O B. The requirements are satisfied; the samples are simple random samples that are independent, and for each of the two groups, the number of successes is at least 5 and the number of failures is at least 5. O C. The requirements are not satisfied; the difference between the rates those that developed polio in the two groups is not statistically significant. O D. The requirements are not satisfied; the samples are not simple random samples that are independent.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
Related questions
Question
In the largest clinical trial ever conducted, 401,974 children were randomly assigned to two groups. The treatment group consisted of 201,229 children given the Salk
vaccine for polio, and the other 200,745 children were given a placebo. Among those in the treatment group, 33 developed polio, and among those in the placebo
group, 115 developed polio. If we want to use the methods for testing a claim about two population proportions to test the claim that the rate of polio is less for children
given the Salk vaccine, are the requirements for a hypothesis test satisfied? Explain.
Choose the correct answer below.
………
O A. The requirements are satisifed; the samples are simple random samples that are independent, and for each of the two groups, the sample size is at least
1000.
O B. The requirements are satisfied; the samples are simple random samples that are independent, and for each of the two groups, the number of successes is at
least 5 and the number of failures is at least 5.
O C. The requirements are not satisfied; the difference between the rates those that developed polio in the two groups is not statistically significant.
O D. The requirements are not satisfied; the samples are not simple random samples that are independent.
![In the largest clinical trial ever conducted, 401,974 children were randomly assigned to two groups. The treatment group consisted of 201,229 children given the Salk
vaccine for polio, and the other 200,745 children were given a placebo. Among those in the treatment group, 33 developed polio, and among those in the placebo
group, 115 developed polio. If we want to use the methods for testing a claim about two population proportions to test the claim that the rate of polio is less for children
given the Salk vaccine, are the requirements for a hypothesis test satisfied? Explain.
Choose the correct answer below.
………
O A. The requirements are satisifed; the samples are simple random samples that are independent, and for each of the two groups, the sample size is at least
1000.
O B. The requirements are satisfied; the samples are simple random samples that are independent, and for each of the two groups, the number of successes is at
least 5 and the number of failures is at least 5.
O C. The requirements are not satisfied; the difference between the rates those that developed polio in the two groups is not statistically significant.
O D. The requirements are not satisfied; the samples are not simple random samples that are independent.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3e21a9c1-2099-4f4b-9b07-b44c4b37739b%2Fe503ab3f-63a0-47de-9a26-786db0cc71ee%2F7eh71fo_processed.png&w=3840&q=75)
Transcribed Image Text:In the largest clinical trial ever conducted, 401,974 children were randomly assigned to two groups. The treatment group consisted of 201,229 children given the Salk
vaccine for polio, and the other 200,745 children were given a placebo. Among those in the treatment group, 33 developed polio, and among those in the placebo
group, 115 developed polio. If we want to use the methods for testing a claim about two population proportions to test the claim that the rate of polio is less for children
given the Salk vaccine, are the requirements for a hypothesis test satisfied? Explain.
Choose the correct answer below.
………
O A. The requirements are satisifed; the samples are simple random samples that are independent, and for each of the two groups, the sample size is at least
1000.
O B. The requirements are satisfied; the samples are simple random samples that are independent, and for each of the two groups, the number of successes is at
least 5 and the number of failures is at least 5.
O C. The requirements are not satisfied; the difference between the rates those that developed polio in the two groups is not statistically significant.
O D. The requirements are not satisfied; the samples are not simple random samples that are independent.
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