Tuesday HW, Wednesday HW, Quiz Thursday

Remember we have our MANDATORY AP registration meeting after school tomorrow--I'll see you there!

Tuesday's HW:

• Please complete the "Inferences for Differences in Means (Exit Slip)" (worksheet) provided in class or below. 
• *Remember to always choose "No" when asked if you want "pooled" for a 2 sample t test or interval

Wednesday's HW:

• Please complete the "Inferences for Means" worksheet (below).

Thursday = Inference for Means Vocab Quiz!

• When do we use a t-distribution v. a z distribution (Normal model)?
• Know the characteristics of the t-distribution....
• Shape
• How does it compare/contrast with a Normal model
• How do degrees of freedom impact the shape
• Confidence Interval
• Hypothesis Test
• P-Value
• Interpret Confidence Level
• Power
• Alpha, Beta
• Statistic v. Parameter
• Standardized Test Statistic
• Critical Value
• Point Estimate
• Margin of Error
• Statistic v. Parameter
• Standard Error
• Null Hypothesis
• Alternative Hypothesis
• Know how to write conclusions for any hypothesis test
• Effect of n on ME, standard deviation, with of interval
• Effect of critical value on ME, standard deviation, width of interval

Today's Class Recap:

• Stamp = 2 prop z review
• Classwork = AP Free Response (new stuff)
• Completed an AP free resposne in class--our first 2 sample t test or 2 sample t interval!
• Then, scored another group's FR to see how this is scored on the exam
• Used these as our first examples of 2 sample t stufff!
• Tomorrow/Thurs. we'll get to some "formal notes" about all this