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 Salkvaccine 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 placebogroup, 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 childrengiven 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 least1000.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 atleast 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 Salkvaccine 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 placebogroup, 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 childrengiven 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 least1000.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 atleast 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.

The treatment group size is 201,229 and placebo group size is 200,745. In treatment group 33…

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.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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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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