1. Please complete the 2 AP Free Response problems provided in class!
- Tonight you are completing each problem; tomorrow you will be given the scoring rubric and tomorrow's homework will be to score your responses
- For #3:
- (a): Interpret confidence level! We did this today! This idea will be on your vocab quiz tomorrow too!
- (b): Look at our stamp problems from Friday and/or Monday! This question is like those! (And just like on Monday's stamp you'll first have to find the interval)
- (c): Find n! More math practice!
- For #4:
- (a): Remember that when we are asked to create a confidence interval that means all 3 steps--conditions, math, interpret the interval! This is great practice for Friday's quiz!
- (b) This one's a little weird....this question is getting at a condition. "This distinction is not important for the construction of the interval in part (a)" because a certain condition passes...the idea of songs being selected "with or without replacement" connects to independence--which condition do we check that allows us to assume independence!
- Critical Value
- Standard Error (from ch. 18)
- Margin of Error (the extent of the interval on either side of our observed statistic)
- Confidence Interval
- What does the "one" in "one proportion z interval" refer to? (this refers to the idea that we have one sample of data)
- Meaning of 99% confidence (or any other % confidence--we learned this today in class; if you were out, look it up! This is also on tonight's homework)
- Know how increasing/decreasing n affects ME and the width of our interval
- Know how increasing/decreasing confidence level (z*) affects ME and the width of our interval
- Point Estimate (a point estimate is a sample statistic, in this chapter, p-hat!)
- WHY do we check the 10% condition? (from ch. 18)
- WHY do we check np and nq>10 (from ch. 18)
And finally, here's tonight's homework in case you lost yours or were out:
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