A procurement specialist has purchased 25 resistors from
Chapter 7, Problem 64SE(choose chapter or problem)
A procurement specialist has purchased 25 resistors from vendor 1 and 30 resistors from vendor 2. Let \(X_{1,1},\ X_{1,2},\ldots,\ X_{1,25}\) represent the vendor 1 observed resistances, which are assumed to be normally and independently distributed with mean 100 ohms and standard deviation 1.5 ohms. Similarly, let \(X_{2,1},\ X_{2,2},\ldots,\ X_{2,30}\) represent the vendor 2 observed resistances, which are assumed to be normally and independently distributed with mean 105 ohms and standard deviation of 2.0 ohms. What is the sampling distribution of \(\bar{X}_{1}-\bar{X}_{2}\)? What is the standard error of \(\bar{X}_{1}-\bar{X}_{2}\)?
Equation Transcription:
Text Transcription:
X_1,1, X_1,2,..., X_1,25
X_2,1, X_2,2,..., X_2,30
X bar_1-X bar_2
X bar_1-X bar_2
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