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The margin of error increases as the level of confidence increases because the larger the expected proportion of intervals that will contain the parameter, the larger the margin of error.

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โˆ™ 2012-05-21 08:08:30
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Q: Why does margin of error increases while level of confidence increases?
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Related questions

The width of a confidence interval is equal to twice the value of the margin of error?

No. The width of the confidence interval depends on the confidence level. The width of the confidence interval increases as the degree of confidence demanded from the statistical test increases.


What Happens To The Width Of The Confidence Interval If You Decrease The Confidence Level Decrease The Sample Size or Decrease the margin of error?

The width of the confidence interval willdecrease if you decrease the confidence level,increase if you decrease the sample sizeincrease if you decrease the margin of error.


How does Increasing the sample size while keeping the same confidence level has what effect on the margin of error?

The margin of error is reduced.


Why does the margin of error increase as the confidence increases?

The margin of error is dependent on the confidence interval.I'll give you examples to understand it better.We know:Confidence Interval (CI) = x(bar) ± margin of error (MOE)MOE = (z confidence)(sigma sub x bar, aka standard error of mean)When CI = 95%, MOE = (1.96)(sigma sub x bar)When CI = 90%, MOE = (1.64)(sigma sub x bar)Naturally, the margin of error will decrease as confidence level decreases.


How do sample size confidence level and standard deviation affect the margin of error?

this dick


What happens to interval when level of confidence is increased?

it increases


What is the difference between standard deviation and margin of error?

Standard of deviation and margin of error are related in that they are both used in statistics. Level of confidence is usually shown as the Greek letter alpha when people conducting surveys allow for a margin of error - usually set at between 90% and 99%. The Greek letter sigma is used to represent standard deviation.


What is meant by a 95 percent confidence interval?

Confidence IntervalsConfidence interval (CI) is a parameter with a degree of confidence. Thus, 95 % CI means parameter with 95 % of confidence level. The most commonly used is 95 % confidence interval.Confidence intervals for means and proportions are calculated as follows:point estimate ± margin of error.


What are the advantages of a small confidence interval in statistics?

The smaller the confidence interval, the more certain you are of the answers. Remember confidence level and confidence interval (margin of error) are 2 separate things. So if you are using an industry standard confidence level of 95% and 5% margin of error in a standard statistical table, then you could say, for example, with 95% certainty that 60% of those polled would vote for John McCain. Another way of saying this is even though you did not poll everyone (if you did, it would then become a very expensive census), you can say with a high degree of certainty (95% certainty) that 55% to 65% of those polled will vote for Johnny (sadly).


As standard deviation increases what happens to the sample size in order to achieve a specified level of confidence?

decreases


What are the elements that affect determination in a sample size?

Margin of error, level of significance and level of power are all elements that will affect the determination of sample size.


Can the margin of error be determined if only the confidence level is known?

No, more information is needed to determine the margin of error. For example, one may need to know the sample's mean, the sample size, and the standard deviations of the population and sample. Depending on the type of test one is performing, certain parameters need not be known. For example, the population standard deviation does not need to be known in a one sample T-test.


If you have a 99 confidence interval what would your confidence level and alpha for it be?

Confidence level 99%, and alpha = 1%.


What confidence level has become the most used or traditional confidence level among business researchers?

95% confidence level is most popular


Feeling a certain amount of anxiousness before a test can be beneficial in all of the following ways except?

it increases your confidence level


What happens to the confidence interval if you increase the confidence level?

The confidence interval becomes wider.


What is confidence associated with an interval estimate is called the?

confidence level


This is a measurement of an arguments strength where the higher the confidence level the more likely the conclusion is true?

confidence level


What is a measurement of an argument strength where the higher the confidence level the more likely the conclusion is true?

Confidence level


How do you know our IQ level?

The intelligence quotient (IQ) is determined by a series of tests. You can take these tests yourself or have them administered to you. The score is usually within a standard margin of error.


True or False The higher the confidence level the narrower the confidence interval?

True.


What happens to the width of the confidence interval if you decrease the confidence level?

The width reduces.


When determining the necessary sample size for hypothesis testing of means for a specified level of confidence and margin of error the minimum sample size is given by which?

Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample.For Confidence level c, and the critical value of Zc is the number such that the area under the statndard normal curve between -Zc and Zc equals C.n > (zcσ/E)2


What is 95 percent Confidence level?

OVERCONFIDENT


What is buffet margin?

The "buffet margin" is, for a given set of conditions, the amount of 'g', which can be imposed for a given level of buffet