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Unit 5: Inference about proportions

Unit 5 tests students' ability to:

  • Create confidence intervals and hypothesis testing for one and two proportions

If you're trying to find the z-star for a 90% confidence interval:
z-star = invNorm( (1-0.9)/2 , 0, 1)

The video and notes say to do invNorm(0.9, 0, 1) and that's wrong

Statistics, Maths, AP Statistics,  help, AP Stats

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