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How to reduce Margin of error?
Increase sample size.
Is a good way to increase a confidence interval is to increase the sample size?
No, the opposite is true.
A way to reduce both type 1 and type 2 errors is to decrease sample size is this statement true?
False, Increase the sample size.
How can reduce the percentage error?
The larger the sample, the lower the % error.. so to reduce a % error, increase your sample size.
What happens to the confidence interval if you increase the sample size?
The confidence interval becomes smaller.
Does the accuracy of a sample in representing the characteristics of the population from which it was drawn always increase with the size of the sample?
yes the size is 4444
How to reduce Margin of error?
Increase sample size.
Is a good way to increase a confidence interval is to increase the sample size?
No, the opposite is true.
As the sample size increase the difference between the sample mean and the population mean approaches what?
Zero
What happens when you increase the sample size in an experiment?
Estimates based on the sample should become more accurate.
True or False For a given level of significance if the sample size is increased the probability of comitting a Type II error will increase?
The statement is false. For a fixed alpha, an increase in the sample size will cause a decrease in beta (but an increase in the power).
How can you reduce the standard error in research?
Increase n or sample size.
Why does the density of a substance not change with the sample size?
Density = mass / volume As sample size increases, both mass and volume increase in the same ratio.
A way to reduce both type 1 and type 2 errors is to decrease sample size is this statement true?
False, Increase the sample size.
How can reduce the percentage error?
The larger the sample, the lower the % error.. so to reduce a % error, increase your sample size.
What happen to confidence interval if increase sample size and population standard deviation simultanesous?
The increase in sample size will reduce the confidence interval. The increase in standard deviation will increase the confidence interval. The confidence interval is not based on a linear function so the overall effect will require some calculations based on the levels before and after these changes. It would depend on the relative rates at which the change in sample size and change in standard deviation occurred. If the sample size increased more quickly than then standard deviation, in some sense, then the size of the confidence interval would decrease. Conversely, if the standard deviation increased more quickly than the sample size, in some sense, then the size of the confidence interval would increase.
How does sample size affect t score?
The estimated standard deviation goes down as the sample size increases. Also, the degrees of freedom increase and, as they increase, the t-distribution gets closer to the Normal distribution.
