A 90% Confidence Interval Is Constructed for the Population Mean

question 92

Multiple Choice

A 90% confidence interval is constructed for the population mean. If a 95% confidence interval had been constructed instead (everything else remaining the same) , the width of the interval would have been ________ and the probability of making an error would have been ________.

• A) wider; bigger
• B) wider; smaller
• C) narrower; bigger
• D) narrower; smaller

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Definitions:

Mixed References

In spreadsheet software, a cell reference that combines absolute and relative referencing, allowing certain parts of the reference to change while others remain constant.

Excel Recognition

The ability of software to identify, interpret, and process data in Excel format, facilitating the manipulation and analysis of spreadsheet information.

What-If Analysis

A process used in decision making to explore the outcomes of different scenarios by altering variables in a model.

Changing Values

The process of altering the content or magnitude of data points within a dataset or spreadsheet.