From the options given, the only option which would result on having a reduced error margin, is to increase the sample size.
<u>Recall</u><u> </u><u>:</u><u> </u>
<em>Margin of Error</em> = Zcritical × σ/√n
- Increasing the mean would have no impact on the margin of error as it is not a part of the factors which affects the margin of error value.
- Increasing the standard deviation, which is the Numerator will result in an increased margin of error value.
- By raising the confidence level, the critical value of Z will increase, hence widening the margin of error.
- The sample size, n being the denominator, would reduce the value of error margin.
Hence, only the sample size will cause a decrease in the margin of error of the interval.
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Answer: To geologists, a rock is a natural substance composed of solid crystals of different minerals that have been fused together into a solid lump. The minerals may or may not have been formed at the same time. What matters is that natural processes glued them all together.
Do you actually mean when?
Raw materials are the basic material from which a product is made. Examples of raw materials include: steel, oil, corn, grain, gasoline, lumber, forest resources, plastic, natural gas, coal, and minerals.
Living up to his most sacred commitment is what Nixon was credited for in the passage.
<h3>Who was Nixon? </h3>
Richard Nixon was the 37th president of the United States and was well known for his sacred commitment.
His sacred commitment involved ensuring there was peace between countries which was why he did lots of diplomatic works during his tenure.
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