Monday I was absent and Tuesday we introduced the concept of a confidence interval.
The two topics of tuesday were when we can find a confidence interval for a proportion and how to find the critical Z-value for a proportion confidence interval
Today we formed the proportion confidence interval by hand and with our graphing calculator!
Today we discussed how the margin of error and sample size are intertwined. We can shift the size of the margin of error by shifting our sample size amount. Larger samples, means smaller margin of error.
1. Complete ALL past khan unit reviews with 7/9 at least! You have the time, don't be lazy!
2. Attempt the next few khan's assigned. Watch the video and read the hints! You can learn a lot from them!