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What statistical test is used to find out if there is a significant mean difference between two split groups on a dependent variable measured on an interval or ratio scale?
Wiki User
∙ 10y ago
You could use a two-tailed t-test. You would use a two-tailed test instead of a one-tailed test because you are not hypothesizing which direction the difference will be. If you hypothesize before hand the direction of change, you could use a one-tailed test.
Wiki User
∙ 10y ago
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Why do you use confidence intervals?
Statistical estimates cannot be exact: there is a degree of uncertainty associated with any statistical estimate. A confidence interval is a range such that the estimated value belongs to the confidence interval with the stated probability.
Is a confidence interval of 1.02-1.41 significant?
2.4299999999999997
What is statistical estimate?
A statistical estimate is an estimation of population based on one or many data samples of a group. There are two types of estimates: point and interval.
What is a confidence interval?
Answers.com says it is: A statistical range with a specified probability that a given parameter lies within the range. I think that means, just how confident you are that your statistical analysis is correct.
Why are statistical procedures such as t-tests and analysis if variances not appropriate for use in qualitative studies?
Because a t-test is designed to measure the difference between means on variables that can be measured (interval data). For example, comparing the difference of height between males and females in centimetres. Qualitative studies are not interval data, but qualitative information is coded and analysed by frequencies - you are not comparing two normally distributed variables that can be measured on a continuous spectrum of measurement.
2 categorical independent variable and 1 interval dependent variable statistical test?
Two way ANOVA
How do you know when there is a significant difference in statistics?
there is always the interval of the numbers like 2,4,5,6....
What are statistical levels of measurement?
Three basic levels of measurement are nominal, ordinal, and interval/interval-ratio.
Why do you use confidence intervals?
Statistical estimates cannot be exact: there is a degree of uncertainty associated with any statistical estimate. A confidence interval is a range such that the estimated value belongs to the confidence interval with the stated probability.
Is a confidence interval of 1.02-1.41 significant?
2.4299999999999997
What is the difference between any two numbers on a scale?
interval interval
What is statistical estimate?
A statistical estimate is an estimation of population based on one or many data samples of a group. There are two types of estimates: point and 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.
What is a confidence interval?
Answers.com says it is: A statistical range with a specified probability that a given parameter lies within the range. I think that means, just how confident you are that your statistical analysis is correct.
What are the difference's between contour interval and index contour?
What are the difference's between contour interval and index contour?
What is class interval size?
The class interval for each interval is the difference between its upper limit and its lower limit.
What is the difference between a contour interval and an index contour?
the contour interval is the difference in elevation between contour lines that are next to each other
