A Researcher Has Developed the Regression Equation Y = 2

question 87

Multiple Choice

A researcher has developed the regression equation y = 2.164 + 1.3657x,where n = 6,the mean of x is 8.667,S_xx = 89.333,and S_e = 3.44.The 90% confidence prediction interval for y when x = 1 is ______.

• A) (−2.14, 9.2)
• B) (−2.54, 10.6)
• C) (−3.04, 9.92)
• D) (−3.14, 10.2)
• E) (−3.24, 10.4)

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Definitions:

Scatterplot

A type of graph used in statistics to display and analyze the relationship between two continuous variables, with dots representing data points.

Correlation

A statistical measure that indicates the extent to which two or more variables fluctuate in relation to each other.

Weight

A measure of the heaviness of an object, often quantified using units such as kilograms or pounds.

Correlation

A statistical measure that describes the extent to which two variables change together.