Typo in Example 5.18

Edward Kao is engaged in a detailed parallel reading of Monte Carlo Statistical Methods and of Introducing Monte Carlo Methods with R. He has pointed out several typos in Example 5.18 of Monte Carlo Statistical Methods which studies a missing data phone plan model and its EM resolution. First, the customers in area i should be double-indexed, i.e.

Z_{ij}\sim\mathcal{M}(1,(p_1,\ldots,p_5))

which implies in turn that

T_i=\sum_{j=1}^{n_j}Z_{ij}.

Then the summary T should be defined as

\mathbf{T}=(T_1,T_2,\ldots,T_n)

and W_5 as

W_5=\sum_{i=m+1}^nT_{i5},

given that the first m customers have the fifth plan missing.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.