103 Characteristics of a rockfall . Environmental Geology (Vol.

58, 2009) ran a simulation study of how far a block from a collapsing rock wall will bounce down a soil slope.

Rebound lengths (in meters) were estimated for 13 rock bounces. The data are repeated in the 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.

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

Interpret the result.

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

Transcribed Image Text:

10.94 13.71 11.38 5.44 13.35 7.26 7.26 17.83 11.92 11.87 4.90 5.85 5.10 6.77 Based on Paronuzzi, P. "Rockfall-induced block propagation on a soil slope, northern Italy." Environmental Geology, Vol. 58, 2009 (Table 2).