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Which level of measurement is required when determining median?
interval
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 level of measurement for Year of Birth nominal or ordinal?
Year of birth is interval level of measurement; age is ratio.
Determine the level of measurement of the variable ages of children 3 years 4 years 5 years 6 years and 7 years?
The level is 1 year.
What level of measurement is grade level?
· Dependent variable ( student's academic achievement ) : It depend on the way that we use it to write the score (if we write it as a letter it will be an ordinal ,but if we write it as number it will be an interval). · Independent variable ( intelligent ) : Interval, · Independent variable ( attention ) : Interval,
What level of measurement is school grade level?
· Dependent variable ( student's academic achievement ) : It depend on the way that we use it to write the score (if we write it as a letter it will be an ordinal ,but if we write it as number it will be an interval). · Independent variable ( intelligent ) : Interval, · Independent variable ( attention ) : Interval,
When calculating the mean the researcher should use data measured at which level?
interval
Can the reducing level be made negative?
No, the reducing level cannot be negative. It is used to describe the impact of a variable on another variable and is typically measured on a scale from 0 to 1. A negative value would not make sense in this context.
How do you find interval estimate?
There are different types of interval estimates. Given a rounded value for some measure, the interval estimate, based on rounding, is the interval from the minimum value that would be rounded up to the given value to the maximum value that would be rounded down to the given value. For example, given 4.5 with rounding to the tenths, the minimum of the interval is 4.45 and the maximum is 4.55 so that the interval estimate is (4.45, 4.55). Statistical interval estimates for a random variable (RV) are probabilistic. For example, given some probability measure (for example 95% or 5% significance level), the interval estimate for a random variable is any interval such that the probability of the true value being inside that interval is 95%. Often the interval is symmetrical about the mean value of the RV that is being estimated, but this need not be the case - particularly if the RV is near an extreme of the distribution.
Can more types of calculations be performed at a nominal level than an interval level?
No. The interval level is more refined and so enables calculations which are not available at the nominal level.
What is a level of measurement where each number can be thought of as a distance measured zero?
It is probably an interval scale but it is difficult to be sure because there appears to be some text missing fro the question.
What is the dependent variable in egg floating in salt water?
The dependent variable in an experiment involving an egg floating in salt water would likely be the level of buoyancy, which can be measured by whether the egg floats or sinks in the solution.
Is the Likert scale an interval measurement?
Technically is an ordinal level measurement - because the options imply a hierarchy (i.e low to high levels of your variable of interest), but we cannot say that the difference between each level is precisely the same as you would be able to with an interval measurement. There is some controversy over this though, and it is still often used like an interval measurement in statistical tests, although this might not really be appropriate.
What level of measurement is IQ scores?
the level of measurement is interval
What happens to the confidence interval if you increase the confidence level?
The confidence interval becomes wider.
Which level of measurement is required for median?
interval
