la rueda de una bicicleta tiene una circunferencia de dos metros cuanto avanzara esta bicicleta si su rueda gira a 900 grados
2 answers:
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<h3><em>Answer:</em></h3><h2><em>No</em></h2>
<em>4</em><em> </em><em>1</em><em>/</em><em>2</em><em> </em><em>times </em><em>2</em><em> </em><em>3</em><em>/</em><em>4</em><em> </em><em>does </em><em>not </em><em>equals </em><em>to </em><em>1</em><em>1</em><em> </em><em> </em><em>1</em><em>1</em><em>/</em><em>4</em><em>8</em><em>.</em>
<em>It </em><em>actually</em><em> </em><em>equals </em><em>to </em><em>1</em><em>2</em><em> </em><em>3</em><em>/</em><em>8</em>
<em>hope </em><em>it</em><em> </em><em>helps</em>
<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>
Answer:
We would have to take a sample of 62 to achieve this result.
Step-by-step explanation:
Confidence level of 95%.
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
That is z with a pvalue of , so Z = 1.96.
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
Assume that the standard deviation in the amount of caffeine in 8 ounces of decaf coffee is known to be 2 mg.
This means that
If we wanted to estimate the true mean amount of caffeine in 8 ounce cups of decaf coffee to within /- 0.5 mg, how large a sample would we have to take to achieve this result?
We would need a sample of n.
n is found when . So
Dividing both sides by 0.5
Rounding up
We would have to take a sample of 62 to achieve this result.