Mathematics, 15.04.2020 20:18 kolin89

You collect a random sample of size n from a population and calculate a 98% confidence interval. Which of the following strategies produces a new confidence interval with a decreased margin of error? (4 points)
A) Use a 99% confidence level.
B) Use a 95% confidence level.
C) Decrease the sample size.
D) Use the same confidence level, but compute the interval n times. Approximately 2% of these intervals will be larger.
E) Nothing can guarantee that you will obtain a larger margin of error. You can only say that the chance of obtaining a larger interval is 0.02.

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You collect a random sample of size n from a population and calculate a 98% confidence interval. Whi...