# A) Describe an example of a real-world situation in which sampling without replacement makes sens...

a) Describe an example of a real-world situation in which sampling without replacement makes sense.

b) How would an 80% confidence interval compare to a 99% confidence interval?

c) What is the advantage of using pivotal confidence intervals instead of percentile confidence intervals?

a) while surveying the students of a college for the mode of income they had we would select students randomly without replacement as we dont want to select the same student and record their readings.

b) 80% confidence interval is narrower than 99% confidence interval . Thus it is more likely that 99% confidence interval will contain the true value.

C) pivotel confidence interval is more exact and accurate than percentile confidence interval

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