30. A bank in a rapidly growing city is outgrowing its facility. The bank officers feel that the operations (proof, transit, computer, bookkeeping) part of the bank should be moved. They are looking for an existing building to lease or buy or for a site on which to build an operations center. They feel that the current facility will handle a quarterly volume that averages 330,000 checks per day. The lead time to obtain a site and design and construct a new facility is at least 2 years.

Given below are the quarterly averages of the daily check volume, in thousands:

a. Determine the four-quarter moving averages, and plot them along with the past quarterly values.

b. Using the graph, determine the average seasonal adjustment (multiplicative) for the peak quarter of the year.

c. When should the bank have its new facility available?

d. What additional information would be helpful in developing this forecast?

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QUARTER YEAR I YEAR 2 YEAR 3 YEAR 4 1234 141 157 181 206 132 147 166 193 152 168 192 222 171 192 221 254