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3 years ago

If ab=37 and xy=1/37, what is the value of the product xxbxyxa

Mathematics

1 answer:

SashulF [63]3 years ago

6 0

In this case, we are simply asked to find for the value of:

xbya or abxy

Since we know that given values of ab and xy, therefore abxy is:

abxy = 37 * (1 / 37)

abxy = 37 / 37

abxy = 1

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Answer:

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(b) The sample size required is 107.

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(a)

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(b)

The margin of error is provided as:

MOE = $250

The confidence level is, 99%.

The critical value of z for 99% confidence level is:

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Compute the sample size as follows:

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$n=[\frac{z_{\alpha/2}\times s}{MOE} ]^{2}$

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