for a random sample of 90 such pairs, where is the sampling distribution of x centered, and what is the standard deviation of the x distribution?

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09-12-2022
Mathematics

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for a random sample of 90 such pairs, where is the sampling distribution of x centered, and what is the standard deviation of the x distribution?

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smecloudbird18 smecloudbird18 · Answer 1 · 2022-12-16T02:57:15-05:00

The standard deviation of the x distribution for a random sample of 90 pairs will be 0.168 .

As stated in the assertion

The sample n has been provided, and we need to determine the sample's standard deviation.

For this reason, we know that the standard deviation of the sample is equal to the population's standard deviation divided by the square root of the sample's length.

The value of alpha is given as,

alpha = 1.6.

Assume that for a specific type of aluminum alloy sheet, X is the sample mean Young's modulus for a random sample of 90 sheets, and

s = alpha/ 90 s

= 1.6/9.48 s

= 0.168

Therefore, 0.168 is the x distribution's standard deviation.

To learn more about standard deviation

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