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What would happen to the width of the confidence interval if the level of confidence is lowered from 95 percent to 90 percent?

decrease


How can you decrease the width of a confidence interval without sacrificing the level of confidence?

To decrease the width of a confidence interval without sacrificing the level of confidence, you can increase the sample size. A larger sample provides more information about the population, which reduces the standard error and narrows the interval. Additionally, using a more precise measurement technique can also help achieve a narrower interval. However, it's important to note that increasing the sample size is the most effective method for maintaining the desired confidence level while reducing width.


What happens to the width of a confidence interval as the value of the confidence coefficient is increased while the sample size is held fixed?

As the confidence coefficient increases, the width of the confidence interval also increases. This is because a higher confidence level requires a larger margin of error to ensure that the true population parameter is captured within the interval. Consequently, while the sample size remains fixed, the interval becomes wider to accommodate the increased uncertainty associated with a higher confidence level.


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

Confidence level 99%, and alpha = 1%.


What is the confidence level for a confidence interval of 46.8 to 47.2?

The confidence level for a confidence interval cannot be determined solely from the interval itself (46.8 to 47.2) without additional context, such as the sample size or the standard deviation of the data. Typically, confidence levels (e.g., 90%, 95%, or 99%) are established based on the statistical method used to calculate the interval. To find the exact confidence level, more information about the underlying statistical analysis is needed.

Related Questions

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.


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

The confidence interval becomes wider.


What happens to interval when level of confidence is increased?

it increases


What would happen to the width of the confidence interval if the level of confidence is lowered from 95 percent to 90 percent?

decrease


How can you decrease the width of a confidence interval without sacrificing the level of confidence?

To decrease the width of a confidence interval without sacrificing the level of confidence, you can increase the sample size. A larger sample provides more information about the population, which reduces the standard error and narrows the interval. Additionally, using a more precise measurement technique can also help achieve a narrower interval. However, it's important to note that increasing the sample size is the most effective method for maintaining the desired confidence level while reducing width.


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

confidence level


What is the most controllable method of increasing the precision of or narrowing the confidence interval?

Confidence intervals represent an interval that is likely, at some confidence level, to contain the true population parameter of interest. Confidence interval is always qualified by a particular confidence level, expressed as a percentage. The end points of the confidence interval can also be referred to as confidence limits.


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

Confidence level 99%, and alpha = 1%.


What happens to the width of a confidence interval as the value of the confidence coefficient is increased while the sample size is held fixed?

As the confidence coefficient increases, the width of the confidence interval also increases. This is because a higher confidence level requires a larger margin of error to ensure that the true population parameter is captured within the interval. Consequently, while the sample size remains fixed, the interval becomes wider to accommodate the increased uncertainty associated with a higher confidence level.


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.


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

True.


What is the confidence level for a confidence interval of 46.8 to 47.2?

The confidence level for a confidence interval cannot be determined solely from the interval itself (46.8 to 47.2) without additional context, such as the sample size or the standard deviation of the data. Typically, confidence levels (e.g., 90%, 95%, or 99%) are established based on the statistical method used to calculate the interval. To find the exact confidence level, more information about the underlying statistical analysis is needed.