Page 541: 5, 9, 11, 25abdf
- For #5, all of the statements (a-e) are incorrect--your job is to describe/explain WHY each is incorrect!
- For #11 we'll use our calculator to create the interval (of course), but here we'll have to enter the "Stats" rather than "Data" when we choose T-Interval
- When you show the formula for 11b just write "t*" in the formula; we'll talk about where this comes from tomorrow
- For 25abdf we need the 4 steps to the hypothesis test! (a = hypotheses, b = conditions, d = math, f = conclusion)
If you're feeling ambitious, here's tomorrow night's (Thursday's) homework--although this one might require you to do some research/reading in chapter 23 for 1,3! This homework assignment sums up many of the main ideas we need to know from chapter 23!
Page 541: 1abc, 13d, 15, 21, 31
- For 1ab you have to use invt( in your calculator to find t*!
- For 1c you have to use tcdf( to find a p-value!
- For 13d you need to find sample size given a ME!
- Set up the equation ME = (crit value)(st. dev. of statistic)
- We cannot find t* without n, so we'll have to use z* for the critical value!
- Do some algebra and solve!
- For 21, write your hypotheses! You got this! Same ideas as a with a one proportion z-test, but we use "mu" instead of "p" in our hypotheses!
- For 31, remember that the "evidence" they want is a hypothesis test!
Since these are the last two homework assignments of the quarter I'm counting both as double!
A few more reminders...
1.) STAMPS ARE DUE TOMORROW!
- Count up your stamps and record the the total on the front (with your name)
- Put them in a bag or staple them together--somehow get them all together
- Double check your count! I'll randomly select 5 students to double check, and if your count is off you get a 0! (Gotta be able to count in AP Stat :) )
2.) We have our MANDATORY SATURDAY SESSION this weekend!
- Be sure to sign up for a time slot!
- If you need to switch your time, no big deal...
- First half of the Saturday: chapter 23 classwork (in groups) (about 40 min)
- Second half: starting "new stuff!" (chapter 24) (45 min)
- And since we'll be at school on a Saturday I won't give you any homework this weekend...
3.) MANDATORY AP MEETING after school, next Thursday, April 6th!
- Meeting starts promptly at 2:20 in the cafe!
- Tell your coaches about this ahead of time! All athletic peeps have been notified!
- Be there!
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