We remedied computer issues allowing Joshua to gain access quickly and easily to the College Board website. We then discussed the contents of Unit 7 and its exam, which Joshua will take tomorrow.

Using textbook (Advanced High School Statistics), we discussed line fitting, residuals, and correlation. Describing linear relationships with correlation - Changing units does not affect correlation.

Using the College Board Website, AP Statistics, Unit 7.10: How to distinguish between data that are paired versus data that comes from two samples - How to identify an appropriate inference procedure involving proportions or means -

Using the College Board Website, AP Statistics, Unit 7.9: Carrying out a test. How to calculate a test statistic and p-value for a significance test of a difference in means- How to interpret the p-value for a significance test of a difference in means. How to interpret the p-value and state a conclusion. Review of the entire process of performing a significance test of a difference in population means-

Using the College Board Website, AP Statistics, Unit 7.8: Setting up a test for the difference of two population means- How to state the null and alternative hypotheses for a significance test of a difference in means- How to identify the procedure and check the conditions for performing a significance test of a difference in means-

Using the College Board website, AP Statistics Unit 7.7: Justifying a claim about the difference of two means. How to interpret a confidence interval for the difference of two means. Constructing and interpreting the confidence interval for a difference in means.

Using the College Board AP website, unit 7.6. How to identify the procedure and verify the conditions for constructing a confidence interval for the difference of two means - How to calculate the confidence interval -

Using the College Board AP website, units 7.3 through 7.5. Interpreting a confidence interval for a population mean, and how to use the interval to justify a claim. Factors that affect the margin of error in a confidence interval - Constructing the confidence interval -

Using the College Board AP website unit 7.2. Why a z-score is not appropriate for creating confidence intervals for a population mean. Identifying the procedure and checking the conditions for constructing a confidence interval for a population mean - How to compute the confidence interval -

Inference for the mean with the t-distribution - Using a normal distribution when standard deviation is known - The t-statistic - Degrees of freedom - Finding area under the t-distribution - Checking conditions for inference - The confidence interval -