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Does the 90% confidence interval found in the previous question consist of numbe

ID: 3221666 • Letter: D

Question

Does the 90% confidence interval found in the previous question consist of numbers that are all positive?

all negative? or different signs? At this level of confidence, is one group more interesting than the other?

The interval contains both positive and negative numbers. We cannot say at the required confidence

level that one group is more interesting than the other.

The interval contains only positive numbers. We can say at the required confidence level that one

group is more interesting than the other.

The interval contains only negative numbers. We cannot say at the required confidence level that one

group is more interesting than the other.

The interval contains only positive numbers. We cannot say at the required confidence level that one

group is more interesting than the other.

The interval contains only negative numbers. We can say at the required confidence level that one

group is more interesting than the other.

The interval contains both positive and negative numbers. We cannot say at the required confidence

level that one group is more interesting than the other.

The interval contains only positive numbers. We can say at the required confidence level that one

group is more interesting than the other.

The interval contains only negative numbers. We cannot say at the required confidence level that one

group is more interesting than the other.

The interval contains only positive numbers. We cannot say at the required confidence level that one

group is more interesting than the other.

The interval contains only negative numbers. We can say at the required confidence level that one

group is more interesting than the other.

Explanation / Answer

The correct answer is ;-

The interval contains both positive and negative numbers. We cannot say at the required confidence

level that one group is more interesting than the other.

Note:- The end of confidence interval both may be positive or both may be negative or lower end is negative upper is positive and When one endpoint of your confidence interval is negative and one is positive, so that the confidence interval includes 0, you can’t tell whether there’s a significant difference between the two populations or not.

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