Characteristics of a rockfall . Refer to the Environmental Geology (Vol. 58, 2009) simulat...

Characteristics of a rockfall . Refer to the Environmental Geology (Vol. 58, 2009) simulation study of how far a blockfrom a collapsing rock wall will bounce down a soil slope,Exercise. Rebound lengths (in meters) wereestimated for 13 rock bounces. The data are repeated inthe table and saved in the ROCKFALL file. A MINITAB analysis of the data is shown in the printout below.

a. Locate a 95% confidence interval for s2 on the printout.Interpret the result.

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b. Locate a 95% confidence interval for s on the printout. Interpret the result.

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c. What conditions are required for the intervals, parts a and b , to be valid?

Based on Paronuzzi, P. “Rockfall-induced block propagation on a soilslope, northern Italy.” Environmental Geology , Vol. 58, 2009 (Table).

Characteristics of a rock fall. In Environmental Geology (Vol. 58, 2009) computer simulation was employed to estimate how far a block from a collapsing rock wall will bounce—called rebound length —down a soil slope. Based on the depth, location, and angle of block-soil impact marks left on the slope from an actual rockfall, the following 13 rebound lengths (in meters) were estimated. The data are saved in the ROCKFALL file. Compute the mean and median of the rebound lengths and interpret these values.

Based on Paronuzzi, P. “Rockfall-induced block propagation on a soil slope, northern Italy,” Environmental Geology , Vol. 58, 2009 (Table).