Regression Analysis Was Applied Between Sales Data (Y in $1000s) $$\hat { y }$$

question 85

Multiple Choice

Regression analysis was applied between sales data (y in $1000s) and advertising data (x in $100s) and the following information was obtained. $$\hat { y }$$ = 12 + 1.8x

N = 17
SSR = 225
SSE = 75
Sb₁ = .2683
The t statistic for testing the significance of the slope is

• A) 1.80.
• B) 1.96.
• C) 6.71.
• D) .56.

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Definitions:

Decimal

A number that includes a decimal point to represent a fraction of a whole.

Percentage

A way of expressing a number as a fraction of 100, denoted by the symbol %.

Lowest Terms

A fraction in which the numerator and denominator have no common factors other than 1, making it the simplest form of the fraction.

Decimal

A system of numbers based on powers of ten, incorporating a point to separate the integer part from the fractional part of a number.