the allowing informaban is am a report on e determination ara ver contant of gal
ID: 3071556 • Letter: T
Question
the allowing informaban is am a report on e determination ara ver contant of galena crystals grown in closed hydrother a system over a rang o temperature. with X-C stallization temperature in and y Aq2s in mol% the data allows. 398 292 352 575 568 450 550 408 484 357 501 605 05 y0.19 0.05 0.23 0.43 0.2 0.40 0,44 0.44 0.45 0.09 0.59 0,63 0.60 From which x,-6145, ,2-3,037,041, y-4.74, ry?-2.1792, Exy.-242 3.22.h1-0.00138, Ko--n.288, and s-0.134. (a) Estimate true average silver content when temperature is 565°C using a 95% confidence interval. (Give answers accurate to 3 decimal places.) bl a,culate 5% ci or the true average change in a ver content associated with a 1°C increas , r temperature a ve answers accurate to decimal places.) c suppose t had previous bean believed t at when c stallization temperature was 377°C, true average silver content would be a 25 carry aut a test at sinificance la 5 to de de whether the ar la data contradicts this pnar be Reject Ho and conclude the data contredicts the prior belief Rajact Ho and canclude tha data doss not contradlict tha price halief. Fail to reject Hy and conclude the date does not contradict the prior beliet. Fail to reject Ha and conclude the data contradicts the prior helief.Explanation / Answer
The statistical software output for this problem is:
Simple linear regression results:
Dependent Variable: y
Independent Variable: x
y = -0.28777115 + 0.0013801505 x
Sample size: 13
R (correlation coefficient) = 0.74770777
R-sq = 0.55906691
Estimate of error standard deviation: 0.13444394
Parameter estimates:
Analysis of variance table for regression model:
Predicted values:
Hence,
a) (0.381, 0.603)
b) (0.00057, 0.00219)
c) Option A is correct.
Parameter Estimate Std. Err. DF 95% L. Limit 95% U. Limit Intercept -0.28777115 0.17862334 11 -0.68091847 0.10537618 Slope 0.0013801505 0.00036955966 11 0.00056675518 0.0021935458Related Questions
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