STAT 103 Sample Questions for the Final Exam
... 3. Using the same data, you compute a 95% confidence interval and a 99% confidence interval. Choose one option ____The intervals have the same width; ____the 99% confidence interval is wider; ____the 95% confidence interval is wider; ____you can't say unless you know the sample size and standard dev ...
... 3. Using the same data, you compute a 95% confidence interval and a 99% confidence interval. Choose one option ____The intervals have the same width; ____the 99% confidence interval is wider; ____the 95% confidence interval is wider; ____you can't say unless you know the sample size and standard dev ...
Course Competency Learning Outcomes
... Course Description: QMB 3200 studies descriptive and inferential statistics with modeling and applications that provide essential information necessary for effective decision making. Topics to be covered include describing data, sampling, interval estimates, hypothesis testing, nonparametric metho ...
... Course Description: QMB 3200 studies descriptive and inferential statistics with modeling and applications that provide essential information necessary for effective decision making. Topics to be covered include describing data, sampling, interval estimates, hypothesis testing, nonparametric metho ...
Review of Basic Statistical Concepts
... deviation above the mean income. The advantage of standardizing is that it facilitates the comparison of values drawn from different populations. Standardized Random Variables X is the Standardized ...
... deviation above the mean income. The advantage of standardizing is that it facilitates the comparison of values drawn from different populations. Standardized Random Variables X is the Standardized ...
Chapter 14
... In general we write the interval as x̄ ± 1.4 Of course, we could ask for different confidence levels. Other common choices are 90%, and 97%, 98%, 99%. A 100% confidence interval would be the range [−∞, ∞], which is not useful at all. So we must allow the possibility of being wrong. ...
... In general we write the interval as x̄ ± 1.4 Of course, we could ask for different confidence levels. Other common choices are 90%, and 97%, 98%, 99%. A 100% confidence interval would be the range [−∞, ∞], which is not useful at all. So we must allow the possibility of being wrong. ...
Confidence Intervals for One Population Proportion
... Ex: If we wanted to estimate the proportion of people who play hooky with a margin of error of .01 at 95% confidence level. No prior info ...
... Ex: If we wanted to estimate the proportion of people who play hooky with a margin of error of .01 at 95% confidence level. No prior info ...
Additional Class Notes
... • The variances can also be used to determine the likelihood of observations being part of the same population. For variances, the test used is the F-test since the ratio of variances will follow the Fdistribution. This test is also the basic test used in the ANOVA method covered in the next section ...
... • The variances can also be used to determine the likelihood of observations being part of the same population. For variances, the test used is the F-test since the ratio of variances will follow the Fdistribution. This test is also the basic test used in the ANOVA method covered in the next section ...
