Hi please help me answer the following:

Question '1 Suppose our target population is very.r large, and the following histogram shows the distribution of net effectiveness in a sample that was produced by a method of random selection. net effectiveness n=8 on 109 150 209 Frequency 50 lllll 4410 -"|4U'U' 4399 The mean [arithmetic average} of these data is closest to: C] 199.94 C] D.060565 C] 1 490.051 C] 139 9.939 C] 999.94 [:1 4500.0 61 [:1 439 0.96 The sample standard deviation is closest to: C] 24.91 D124 [:1 9.152 [1199414256 C] 509.23 C] 3.321 C] 61? We can be 99 percent condent that the actual population average of net effectiveness is [closest to): C] Between 4914.949 and 4589.129 C] Between 1399.993 and 1399929 C] Between 899.8 and 399.32 C] Between 99.93 and 498.91 C] Between 933319 and 9.21299 C] Between 4499.191 and 4399.99 C] Between 99192 and 1991.994 We can be 99 percent condent that the actual population average of net effectiveness is [closest to}: C] Between 4499.29? and 4399.899 C] Between 4499.398 and 4399.294 C] Between 4499.141 and 4399.98 C] Between 4499.213 and 43 99.998 C] Between 4499.184 and 4399.937:Ir C] Between 4499.294 and 4399.82? Question 2 Suppose our target population is wen\":r large, and the following histogram shows the distribution of net salt in a sample that was produced by a method of random selection. net salt n=1 206 300 400 Frequency 199 llllll 365 39") 3'95 466 405 410 The mean {arithmetic average} of these data is closest to: [:1 139 9.93 [:1 4696.6? [:1 2 69.6? [:1 399.93 [:1 9.6?6295 [:1 199.93 [:11 599.93 The sample standard deviation is closest to: [:1 24.88 131358.639 1:11.239 [:1 3.368 13183.3? [:1 6164 [:1 3693.164 We can be 90 percent confident that the actual population average of net salt is (closest to): Between -2.6228 and 2.4822 Between -200.12 and -200.02 Between -1001.009 and -999.13 Between 1592.991 and 1606.868 Between 399.8 and 400.06 Between 1260.566 and 1539.293 Between 148.66 and 251.2 We can be 70 percent confident that the actual population average of net salt is (closest to): Between 399.73 and 400.13 Between 399.86 and 399.99 Between 399.85 and 400.01 Between 399.88 and 399.98 Between 399.78 and 400.08 Between 399.83 and 400.03Question 3 Suppose our target population is very large, and the following histogram shows the distribution of net rating in a sample that was produced by a method of random selection. net rating n=900 150 100 Frequency 1550 1600 1650 The mean (arithmetic average) of these data is closest to: 0-199.35 O 1000.652 01600.652 0400.65 0-599.35 0-999.35 O200.65 The sample standard deviation is closest to: O25.27 0507.58 O 3750.568 01.258 01379.757 068.69 0186.73We can be 80 percent confident that the actual population average of net rating is (closest to): Between 1599.572 and 1601.731 Between 197.72 and 203.59 Between -207.33 and -191.37 Between -1058.289 and -940.41 Between -599.4 and -599.29 Between 978.97 and 1022.335 Between 240.43 and 560.87 We can be 95 percent confident that the actual population average of net rating is (closest to): Between 1600.083 and 1601.22 Between 1599.266 and 1602.037 Between 1599.001 and 1602.303 Between 1598.482 and 1602.821 Between 1599.778 and 1601.525 Between 1599.943 and 1601.361