38.

In a study on the estimation of visitation to the Fortifications of Qubec National Historic Site, the reliability of magnetic counters used to measure the variation of visitation over time was evaluated. The evaluation took place over 11 days, and was conducted on two schedules to cover attendance not only during the day, but also in the early evening. The number of people visiting the Fortifications was counted manually. The number of passages collected by the magnetic counters was also recorded. The data below is an extract from the sample.

Actual Number of people / Number of people perceived by the counter

\f544 18022 ; MM y 1154 : y = 83666 Exy = 38496 ; n = 220,7163 0,9687 0,8475 0,9384 0,8806 0,9859