A University Dean Is Interested in Determining the Proportion of Students

question 125

Short Answer

A university dean is interested in determining the proportion of students who receive some sort of financial aid.Rather than examine the records for all students,the dean randomly selects 200 students and finds that 118 of them are receiving financial aid.Use a 90% confidence interval to estimate the true proportion of students who receive financial aid.

Understand the impact of sample size on margin of error in interval estimation.

Determine the appropriate use of sample standard deviation in interval estimation when population standard deviation is unknown.

Apply the concept of margin of error in the development of interval estimates.

Understand the impacts and significance of historical documents and edicts in shaping early colonial history.

---

Definitions:

Residual Plots

Graphical representations that show the differences (residuals) between observed and predicted values in a regression analysis.

Independent Variable

A variable that is manipulated in an experiment to observe its effect on a dependent variable.

Variance Inflation Factor

A measure used to detect the presence of multicollinearity in a regression analysis.

Independent Variables

Variables in an experiment or model that are manipulated or changed to observe their effect on dependent variables.