A procurement specialist has purchased 26 resistors from vendor 1 and 31 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 1.4 ohms. Similarly, let X2,1, X22...X31 represent the vendor 2 observed resistances, which are assumed to be normally and independently distributed with mean 104 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(μX₁-X₂ (Round the second answer to four decimal places.) The standard error of X₁ - X₂ is i = i 0²X₁-X₂ = i (Round your answer to three decimal places.) )

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A procurement specialist has purchased 26 resistors from vendor 1 and 31 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 1.4 ohms. Similarly, let X2,1, X22X31 represent the vendor 2 observed resistances, which are assumed to be
normally and independently distributed with mean 104 ohms and standard deviation of 2.0 ohms. What is the sampling distribution of
X₁ - X₂? What is the standard error of X₁ − X₂ ?
¸0² X₁-X₂
X₂ is N(MX₁-X₂ =
=
The sampling distribution of X₁
(Round the second answer to four decimal places.)
The standard error of X₁ X₂ is i
i
(Round your answer to three decimal places.)
)
Transcribed Image Text:A procurement specialist has purchased 26 resistors from vendor 1 and 31 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 1.4 ohms. Similarly, let X2,1, X22X31 represent the vendor 2 observed resistances, which are assumed to be normally and independently distributed with mean 104 ohms and standard deviation of 2.0 ohms. What is the sampling distribution of X₁ - X₂? What is the standard error of X₁ − X₂ ? ¸0² X₁-X₂ X₂ is N(MX₁-X₂ = = The sampling distribution of X₁ (Round the second answer to four decimal places.) The standard error of X₁ X₂ is i i (Round your answer to three decimal places.) )
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