A procurement specialist has purchased 26 resistors from vendor 1 and 28 resistors from vendor 2. Let X1,1, X1,2,..,X26 represent the vendor 1 observed resistances, which are assumed to be normally and independently distributed with mean 100 ohms and standard deviation 1.6 ohms. Similarly, let X2.1,X2.2,...,X28 represent the vendor 2 observed resistances, which are assumed to be normally and independently distributed with mean 106 ohms and standard deviation of 2.0 ohms. What is the sampling distribution of X1 - X2 ?What is the standard error of X1 - X2 ? The sampling distribution of X1 –X2 is N(µx,-X, = i (Round the second answer to four decimal places.)

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A procurement specialist has purchased 26 resistors from vendor 1 and 28 resistors from vendor 2. Let X1,1, X1,2,...,X26 represent
the vendor 1 observed resistances, which are assumed to be normally and independently distributed with mean 100 ohms and
standard deviation 1.6 ohms. Similarly, let X2.1, X2.2,...,X28 represent the vendor 2 observed resistances, which are assumed to be
normally and independently distributed with mean 106 ohms and standard deviation of 2.0 ohms. What is the sampling distribution
of X1 - X2 ?What is the standard error of X1 – X2 ?
The sampling distribution of X1 –- X2 is N(µx,-X,
(Round the second answer to four decimal places.)
The standard error of X1 - X2 is i
(Round your answer to three decimal places.)
Transcribed Image Text:A procurement specialist has purchased 26 resistors from vendor 1 and 28 resistors from vendor 2. Let X1,1, X1,2,...,X26 represent the vendor 1 observed resistances, which are assumed to be normally and independently distributed with mean 100 ohms and standard deviation 1.6 ohms. Similarly, let X2.1, X2.2,...,X28 represent the vendor 2 observed resistances, which are assumed to be normally and independently distributed with mean 106 ohms and standard deviation of 2.0 ohms. What is the sampling distribution of X1 - X2 ?What is the standard error of X1 – X2 ? The sampling distribution of X1 –- X2 is N(µx,-X, (Round the second answer to four decimal places.) The standard error of X1 - X2 is i (Round your answer to three decimal places.)
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