Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a randomly chosen site at an archaeological research location. A random sample of 120 sites gave the readings shown in the table below. Magnetic Susceptibility Readings, centimeter-gram-second × 10-6 (cmg × 10-6) Magnetic Susceptibility OSx< 10 10 sx< 20 20 sx < 30 Number of Readings Comment "col "neutral" "warm" "very interesting" "hot spot" Estimated Probability 30/120 = 0.25 54/120 = 0.45 18/120 = 0.15 12/120 = 0.10 6/120 = 0.05 30 54 18 30 sx< 40 12 40 5 and ng > 5 are both satisfied. O Yes, it is appropriate since the criteria n 2 100 and np < 10 are are both satisfied. O No, it is not appropriate since at least one of the criteria n 2 100 or np < 10 are not satisfied. O No, it is not appropriate since at least one of the criteria np > 5 and ng > 5 are not satisfied. O Yes, it is appropriate since n 2 30. What is the value of 2? = (b) Use the Poisson distribution to approximate the probability that the archaeologists will find four or fewer "hot spots." Hint: Use Table 4 of Appendix II. (Round your answer to four decimal places.) (c) Use the Poisson distribution to approximate the probability that the archaeologists will find more than eight "hot spots." Hint: Use Table 4 of Appendix II. (Round your answer to four decimal places.)

Name: Magnetic surveying is one technique used by archaeologists to determin
Uploaded: 2024-03-20T07:06:41.000Z
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Description: Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let