14.
a) Create four multiple choice exam questions (and their solutions) that test knowledge on calculating and interpreting confidence intervals. One for each of the following conditions.
1) For the population mean with known sigma
2) For the population mean and unknown sigma
3) For the population proportion
4) Sample size determination
b) Solve the questions created above. The Solutions should include the formula in general, numbers plugged in, final answer and interpretation in terms of the business application.
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