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we wish to estimate μ, the mean length of the fish in our pond. we take...

we wish to estimate μ, the mean length of the fish in our pond. we take a random sample of 65 fish and measure their lengths. for this sample, we find an average length of 4.53 cm, and a standard deviation of 0.8cm.

i) using our observations as a pilot study, determine the sample size needed to estimate the mean μ within 0.1cm with 95% confidence.

ii) find the upper confidence interval for μ

math   Statistics-And-Probability   
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Answer #1

r = 4.53 oro.8 E 0.) 1212 =ool 1-2 = 0.95 x = 0.05 dh = 0.025 hr 20.025 = 1.96 0.8 1.96 x 0.) In= 15.68 n = 245.86 a 246 uppe

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