You are looking to find the different proportions of international students at universities. A poll is conducted at a private university that states out of 800 students, 150 of them are international. Another poll is conducted at a public university that states out of 1000 students, 200 of them are international.
- Write a 98% confidence interval for the difference in the proportions of private and public students that are international.
- Interpret the confidence interval that you found above by explaining what it means.
- Is there evidence that the proportion at the public university is higher than the private university? What are the appropriate hypotheses? Perform the test and find the P-value. Use a 5% significance level.
- Without doing any calculation, state what would have been the P-value if you had run a two-sided test. Would you reject or fail to reject the null hypothesis?
Sample Solution
Creation of RCD The idea about the formation of RCD between three Muslim members of CENTO (Pakistan, Iran and Turkey) was first discussed in April 1964 in Washington. They decided to forge a new partnership without CENTO when they three countries were gone to attend the CENTO Council meeting. A joint statement by the three heads of States issued on 22 July 1964 in Ankara, named the new organization âRegional Co-Operation for Developmentâ and resolved that appropriate means should be adopted to set up co-operation âin all fields âin a spirit of âregional co-operation.â It was decided to create three Ministerial Councils composed of Foreign Ministers and a Regional Planning Committee which will be consisted of the heads of these tri-national planning organizations a permanent Secretariat was later established at Tehran. A few months later president Cevdet Sunay said that Turku-Pakistani relations had reached a level for above that of alliances (Burke, 1973). The Secretariat was established in Tehran. The first Secretary General of RCD was an Iranian Dr Fuad Rouhani. It has often argued that the RCD was a result of disillusionment of three states with CENTO, through it is also considered by some to be the most satisfying and potentially the most faithful, partnership which Pakistan has so far forged with the Muslims countries. (Ziring, 1990)>
Creation of RCD The idea about the formation of RCD between three Muslim members of CENTO (Pakistan, Iran and Turkey) was first discussed in April 1964 in Washington. They decided to forge a new partnership without CENTO when they three countries were gone to attend the CENTO Council meeting. A joint statement by the three heads of States issued on 22 July 1964 in Ankara, named the new organization âRegional Co-Operation for Developmentâ and resolved that appropriate means should be adopted to set up co-operation âin all fields âin a spirit of âregional co-operation.â It was decided to create three Ministerial Councils composed of Foreign Ministers and a Regional Planning Committee which will be consisted of the heads of these tri-national planning organizations a permanent Secretariat was later established at Tehran. A few months later president Cevdet Sunay said that Turku-Pakistani relations had reached a level for above that of alliances (Burke, 1973). The Secretariat was established in Tehran. The first Secretary General of RCD was an Iranian Dr Fuad Rouhani. It has often argued that the RCD was a result of disillusionment of three states with CENTO, through it is also considered by some to be the most satisfying and potentially the most faithful, partnership which Pakistan has so far forged with the Muslims countries. (Ziring, 1990)>
