2.88 Characteristics of a rockfall. Refer to the Environmental O Geology (Vol. 58, 2009) study of how far a block from ROCKS a collapsing rock wall will bounce, Exercise 2.61 (p. 61). The rebound lengths (meters) for a sample of 13 rock bounces are reproduced in the table below. 10.94 13.71 11.38 7.26 1783 11.92 11.87 5.44 13.35 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). a. Compute the range of the 13 rebound lengths. Give the units of measurement of the range. b. Compute the variance of the 13 rebound lengths. Give the units of measurement of the variance. c. Compute the standard deviation of the 13 rebound lengths. Give the units of measurement of the standard deviation.

Gender Alcohol Exercise SQI GPA Male Yes 9 15.5 3.85 Male Yes 11 11.0 5.46 Female No 5 11.1 3.28 Female No 6 13.9 2.37 Female Yes 8 9.9 4.63 Male Yes 11 14.5 4.58 Male Yes 9 10.6 4.96 Male Yes 11 15.1 1.02 Female No 8 12.4 4.33 Female Yes 10 11.5 3.96 Male No 8 10.6 5.83 Male Yes 7 11.5 6.12 Male Yes 10 10.8 2.20 Male Yes 11 12.5 2.93 Male Yes 9 16.4 4.52 Female Yes 2 14.1 4.50 Male Yes 8 15.3 1.63 Female No 6 18.0 3.09 Female No 5 9.7 3.92 Male Yes 11 10.5 3.10 Female No 8 13.7 5.42 Male Yes 8 14.9 2.03 Female No 7 10.9 5.90 Male No 10 14.5 3.25 Male Yes 7 11.5 5.21 Female No 9 11.3 3.31 Male Yes 9 11.6 2.51 Male No 10 15.6 3.88 Male Yes…

6:18 ul LTE O MATH 1122 Homework 13.pdf •.. 5 of 6 30 regular and double stuff Oreos were sampled and their filling weighed. Table 1. Example frosting mass data. Filling Masses of Regular Oreos (s) 3.00 2.90 3.20 3.20 3.20 3.12 3.19 3.31 3.39 3.18 3.15 3.15 3.14 3.01 3.01 3.17 3.06 3.16 3.13 3.23 2.94 3.05 3.14 3.30 3.09 3.10 3.11 3.24 3.10 3.15 Filling Masses of Double Stuff Oreos (g) 6.11 6.19 6.27 6.18 6.34 6.21 6.05 6.18 6.34 6.23 6.08 6.04 6.13 6.65 6.20 6.12 6.46 6.37 6.19 6.01 6.21 6.46 6.27 6.25 6.15 6.15 6.35 6.24 6.32 6.03 https://www.amstat.org/ASA/Education/STEW/home.asp The mean of a sample measures the middle of all of the numbers. a) Calculate the mean of each sample. Along with the middle, we would like to measure how spread out the numbers are. The standard deviation measures how spread out the numbers are. A quick and dirty estimation of the standard deviation is one-sixth of the range of the data. That is, get the distance between the min and max and then divide that…

The following data was reported on total Fe for four types of iron formation (1 = carbonate, 2 = silicate, 3 = magnetite, 4 = hematite). 1: 20.6 28.1 27.8 27.0 27.9 25.2 25.3 27.1 20.5 31.2 2: 26.5 24.0 26.2 20.2 23.6 34.0 17.1 26.8 23.7 24.8 3: 30.2 34.0 27.5 29.4 28.3 26.2 29.9 29.5 30.0 35.8 4: 36.6 44.2 34.1 30.3 32.0 33.1 34.1 32.9 36.3 25.2   Carry out an analysis of variance F test at significance level 0.01. State the appropriate hypotheses. H0: ?1 ≠ ?2 ≠ ?3 ≠ ?4Ha: at least two ?i's are equalH0: ?1 = ?2 = ?3 = ?4Ha: all four ?i's are unequal    H0: ?1 ≠ ?2 ≠ ?3 ≠ ?4Ha: all four ?i's are equalH0: ?1 = ?2 = ?3 = ?4Ha: at least two ?i's are unequal Summarize the results in an ANOVA table. (Round your answers two decimal places.) Source df Sum ofSquares MeanSquares f Treatments         Error         Total         Give the test statistic. (Round your answer to two decimal places.)