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Question 2: An international private school called IWB has two branches in the GCC countries, one in Oman and another in Kuwait. IWB manager believes that there is no difference in the student enrollment rate for their branch in Oman and the branch in Kuwait. A random sample of 25 students from Oman's branch was selected. The student enrollment rate in the sample found to be 24%. Another random sample of 30 students from the branch in Kuwait showed an enrolment rate of 27%. a. Find a point estimate for the difference between the population proportions for the two countries (Oman and Kuwait). b. Find a point estimate of the standard deviation for the difference between the population proportions for the two countries. c. Construct a 99% confidence interval for the difference between the population proportions for the two countries.

Question 2: An international private school called IWB has two branches in the GCC countries, one in Oman and another in Kuwait. IWB manager believes that there is no difference in the student enrollment rate for their branch in Oman and the branch in Kuwait. A random sample of 25 students from Oman's branch was selected. The student enrollment rate in the sample found to be 24%. Another random sample of 30 students from the branch in Kuwait showed an enrolment rate of 27%. a. Find a point estimate for the difference between the population proportions for the two countries (Oman and Kuwait). b. Find a point estimate of the standard deviation for the difference between the population proportions for the two countries. c. Construct a 99% confidence interval for the difference between the population proportions for the two countries.

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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Answer: Question 2: An international private school called IWB has two branches in the GCC countries, one in Oman and another in Kuwait. IWB manager believes that there is no difference in the student enrollment rate for their branch in Oman and the branch in Kuwait. A random sample of 25 students from Oman's branch was selected. The student enrollment rate in the sample found to be 24%. Another random sample of 30 students from the branch in Kuwait showed an enrolment rate of 27%. a. Find a point estimate for the difference between the population proportions for the two countries (Oman and Kuwait). b. Find a point estimate of the standard deviation for the difference between the population proportions for the two countries. Construct a 99% confidence interval for the difference between the population proportions for the two countries. d. State the null and alternative hypotheses. Test the hypothesis stated in Part d at the 1% significance level. f. What do you conclude? C. e. Answer: Question 3:
Transcribed Image Text:Answer: Question 2: An international private school called IWB has two branches in the GCC countries, one in Oman and another in Kuwait. IWB manager believes that there is no difference in the student enrollment rate for their branch in Oman and the branch in Kuwait. A random sample of 25 students from Oman's branch was selected. The student enrollment rate in the sample found to be 24%. Another random sample of 30 students from the branch in Kuwait showed an enrolment rate of 27%. a. Find a point estimate for the difference between the population proportions for the two countries (Oman and Kuwait). b. Find a point estimate of the standard deviation for the difference between the population proportions for the two countries. Construct a 99% confidence interval for the difference between the population proportions for the two countries. d. State the null and alternative hypotheses. Test the hypothesis stated in Part d at the 1% significance level. f. What do you conclude? C. e. Answer: Question 3:
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