A team of undergraduate business students was asked to recommend improvement to the data entry process at the county appraiser's office. The team identified several types of errors, such as posting an incorrect name or entering an incorrect parcel number. The deed abstractors were asked to keep a record of the errors in data entry that were sent to them. The following table is a frequency distribution of errors:
$$
\begin{array}{lc}
\hline \text { Defect } & \text { Total } \\
\hline \text { Posting error in name } & 23 \\
\text { Posting error in parcel } & 21 \\
\text { Property sold after tax bills were mailed } & 5 \\
\text { Inappropriate call transfer (not part of deeds/ } & 18 \\
\text { mapping) } & \\
\text { Posting error in legal description/incomplete } & 4 \\
\text { legal description } & \\
\text { Deeds received after tax bills printed } & 6 \\
\text { Correspondence errors } & 2 \\
\text { Miscellaneous errors } & 1 \\
\hline
\end{array}
$$
a. Construct a Pareto diagram of these defects in data entry.
b. What recommendations would you suggest to the county appraiser?