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  • 30-01-2024
  • Mathematics
contestada

A 90% confidence interval for the mean of a population is computed from a random sample and is found to be 90 ± 30.

Which of the following be the 95% confidence interval based on the same data?

A) 90 ± 39

B) Without knowing the sample size, any of the above answers could be the 95% confidence interval.

C)90 ± 21

D)90 ± 70

E)90 ± 30

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