question archive A random sample of magnesium concentrations (in parts per million, or ppm) in ground water from various locations follows
Subject:StatisticsPrice:3.87 Bought7
A random sample of magnesium concentrations (in parts per million, or ppm) in ground water from various locations follows. Estimate the mean concentration of magnesium in ppm with 90% confidence. Assume .
40 |
83 |
69 |
64 |
117 |
77 |
55 |
96 |
23 |
106 |
26 |
59 |
122 |
20 |
90 |
103 |
68 |
15 |
63 |
117 |
69 |
8 |
89 |
53 |
6 |
113 |
120 |
72 |
40 |
54 |
77 |
46 |
108 |
74 |
93 |
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