3 years ago

Unit rate for $56/25 gal

1 answer:

8 0

Answer:

c=3 did you know that acording to the number letter the letter c is eqal to 3 and when said as c=3 looks like your special no no zone and c======3 looks like my special nono zone hahahahahahahahaahahahhahahahahahahhaahahahahhaahahaahahah

Step-by-step explanation:

_/(-o__-o)

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The given parameters are:

$n = 420$ --- the sample size

$\sigma = 1.6$ --- the standard deviation

$\bar x = 10$ --- the mean

$\alpha = 99\%$ --- the confidence level.

The margin of error (E) is calculated as follows:

$E = z \times \sqrt{\frac{\sigma^2}{n}}$

So, we have:

$E = z \times \sqrt{\frac{1.6^2}{420}}$

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Substitute 2.576 for z

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Take square roots

$E = 2.576 \times 0.0781$

Multiply

$E = 0.2012$

Approximate

$E = 0.20$

Hence, the margin of error is 0.20