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Q: When the confidence interval is wider than a prediction interval?

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No, it is not. A 99% confidence interval would be wider. Best regards, NS

t-test for means

A variable measured at the interval or ratio level can have more than one arithmetic mean.

Interval notation is a method of writing down a set of numbers. An example of this is all numbers that are greater than five.Ê

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No, it is not. A 99% confidence interval would be wider. Best regards, NS

Never!

if the confidence interval is 24.4 to 38.0 than the average is the exact middle: 31.2, and the margin of error is 6.8

Yes. Simply make sure that the interval is greater than or equal to the range of the random variable.

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.

A confidence interval, for a given probability, is the interval within which the true value may be found with that probability if the null hypothesis is true. There are two possible reasons why a confidence interval may be asymmetrical. One is that the alternative hypothesis is asymmetrical: for example, H0 is X = 5 and H1 is X > 5 (rather than X â‰ 5). The other possible reason is that the test statistic has an asymmetrical distribution. Either of these can give rise to asymmetrical CIs.

Expected value is the outcome of confidence of how probability distribution is characterized. If the expected value is greater than the confidence interval then the results are significant.

The moon is not wider than the earth. Therefore, it can not be much wider than the earth.

t-test for means

Wider than the Sky was created in 2004.

If the first derivative of a function is greater than 0 on an interval, then the function is increasing on that interval. If the first derivative of a function is less than 0 on an interval, then the function is decreasing on that interval. If the second derivative of a function is greater than 0 on an interval, then the function is concave up on that interval. If the second derivative of a function is less than 0 on an interval, then the function is concave down on that interval.

Yes, its 600km wider

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