Questlon 1 Suppose our target population is very:r large, and the following histogram shows the distribution of net salt in a sample that was produced by a method of random selection. mt salt M1800 300 400 Frequency 100 200 0 ll'l'lI 790 3'95 800 305 810 The mean (arithmetic average] of these data is closest to: 400.03 199.97 -800.03 1599.972 1199.972 799.97 -0.023141 The sample standard deviation is closest to: 9.162 3.371 24.91 1.24 1359.792 500.24 3596.297 E can be 70 percent condent that the actual population average of net salt is (closest to}: Between 199.94 and 200 Between -33.245 and 33.19 Between 412.25 and -337.81 Between 1109.675 and 1290.269 Between -300.25 and -799.3 Between 799.89 and 300.05 Between 1599.363 and 1600.53 E can be 99 percent condent that the actual population average of net salt is (closest to]: Between 799.82 and 300.13 Between 799.92 and 300.03 Between 799.9 and 300.04 Between 799.77 and 300.13 Between 799.87 and 300.07 Between 799.34 and 300.1