Unit 11 - Confidence intervals (Statistics)

1: Expected value with empirical probabilities

1.1:







1.2:










1.3:




Answer: 







1.4:







2: Conditions for a confidence interval (z interval) for a proportion

2.1:




2.2:




2.3:




2.4:




3: Finding the critical value z for a desired confidence level

3.1:
















3.2:










3.3:















3.4:

Tags: Math,Statistics