# (a) Let X1, . . ., Xn be a random sample from a Poisson distribution with parameter Î». Derive a...

## Question:

(b) To date nodes in a phylogenetic tree, the mean path length (MPL) is used in estimating the relative age of a node. The following data represent the MPL for 39 nodes (source: TomBritton, Bengt Oxelman, Annika Vinnersten, and Kare Bremer, €œPhylogenetic dating with confidence intervals using mean path-lengths€). Assume that the data (given in centimeters) follow a Poisson distribution with parameter Î».

Obtain a 95% confidence interval for l and interpret.

The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...

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## Mathematical Statistics With Applications In R

**ISBN:** 9780124171138

2nd Edition

**Authors:** Chris P. Tsokos, K.M. Ramachandran

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