In a study the carapace lengths in mm of thenus lobster, Ask an Expert

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In a study, the carapace lengths (in mm) of Thenus lobster caught near Singapore measured: 78,66,65,63,60,60,58,56,52 and 50 ( the population data is approximately normal).

Find:

(round to the nearest tenth)

a. The sample mean

b. The 80% confidence intervals for the population mean=

c. The 50% confidence intervals for the population mean=

d. The 98% confidence intervals for the population mean=

e. How many would they need to sample to be 95% sure to be within 0.2 of the population mean?

f. How many more (than the original 10) would they need to sample to be 86% sure to be withing .3 of the population mean?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9374575

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