Aresearcher did a pilot sample of 25 individuals with a population standard deviation of 0.40. How many more must he survey to develop a 95% confidence interval that has 0.03 margin of error? (Note: Round - up your answer into whole number) A 543 B 518 658 D 683

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Aresearcher did a pilot sample of 25 individuals with a population standard deviation of 0.40.
How many more must he survey to develop a 95% confidence interval that has 0.03 margin
of error? (Note: Round - up your answer into whole number)
A
543
B
518
658
D
683
Transcribed Image Text:Aresearcher did a pilot sample of 25 individuals with a population standard deviation of 0.40. How many more must he survey to develop a 95% confidence interval that has 0.03 margin of error? (Note: Round - up your answer into whole number) A 543 B 518 658 D 683
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