3. The article “The Incorporation of Uranium and Silver by Hydrothermally Synthesized Galena” (Econ. Geology, 1964: 1003
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3. The article “The Incorporation of Uranium and Silver by Hydrothermally Synthesized Galena” (Econ. Geology, 1964: 1003
question by considering your answer to Question #2 above, not by actually computing the interval. Explain your reasoning. c) Calculate a 95% confidence interval for the true average change in silver content associated with a 1°C increase in temperature. Hint: You can find Sex with the information provided above using a formula on the bottom of pg. 117. d) Predict the silver content for a single observation to be made when temperature is 500°C using a 95% prediction interval. Comment on how your prediction calculated here compares to the estimate you calculated in (a). Is this what you would expect? Explain.
3. The article “The Incorporation of Uranium and Silver by Hydrothermally Synthesized Galena” (Econ. Geology, 1964: 1003-1024) reports on the determination of silver content of galena crystals grown in a closed hydrothermal system over a range of temperature. With x = crystallization temperature in °C and y = Ag2S in mol%, the summary data follows: Xx, = 6130 < y; = 4.73 {x} = 3,022,050 < x;y; = 2418.74 Ey? = B2 = 0.00143, B. =-0.311, ã = 471.54, n=13, and s = 0.131. a) Estimate the true average silver content when the temperature is 500°C using a 95% confidence interval. b) How would the width of a 95% confidence interval for true average silver content when temperature is 400°C compare to the width of the interval in part (a)? Answer this