1 A bridge is to be built across a deep canyone An engineer

1. A bridge is to be built across a deep canyone. An engineer is interested in determining the distribution of the random variable X, the maximum wind speed per day at the site, so that the bridge can be designed to withstand potential stresses that will be placed upon it from this source.

2. A botanist thinks that indoleacetic acid is effective in stimulatin the formation of roots in cuttings from lemon trees. In an experiment to verify this contention two groups of cuttings are being used. One group is to be treated with a dilute solution of indoleacetic acid; the other is given only water. Later a comparison of the root systems of the two groups will be made.

In both of these different cases, decide whether a statistical study is appropriate. If so, explain why you think this is the case and identify the population(s) of interest.

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