You are about to collect data on rabbits, to estimate their mean ear length. The population follows a Normal Distribution with a (known) standard deviation of 0.4 cm. How large does your sample need to be, in order for your 95% confidence interval to have a margin of error 0.2 cm? (Show work!) A) 16 B) 14 C) 4 D) 12

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You are about to collect data on rabbits, to estimate their mean ear length. The population follows a Normal Distribution with a (known) standard deviation of 0.4 cm. How large does your sample need to be, in order for your 95% confidence interval to have a margin of error 0.2 cm? (Show work!)

A) 16

B) 14

C) 4

D) 12

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