The Reading Speeds (In Tens of Words Per Minute)and Typing

question 38

Multiple Choice

The reading speeds (in tens of words per minute) and typing speeds (in words per minute) of nine randomly selected secretaries were recorded. Dependent variable is: Reading speed
R-squared = 97.9521%
S = 2.094847 with 9 - 2 = 7 degrees of freedom $$\begin{array} { l c l l l } \text { Variable } & \text { Coefficient } & \text { SE(Coeff) } & \text { t-ratio } & \text { P-value } \\\text { Constant } & - 40.738 & 5.820749 & - 6.99876 & 0.000212 \\\text { Typing Speed } & 2.260433 & 0.123535 & 18.29785 & 3.61 \times 10 ^ { - 7 }\end{array}$$

• A)Reading speed = -40.738 + 2.260433 × Typing speed; We estimate that the reading speeds for these secretaries increase about 2.260433 words per minute for each 10 word per minute increase in their typing speed.
• B)Typing speed = -40.738 × Reading speed + 2.260433; We estimate that the typing speeds for these secretaries increase about 2.260433 words per minute for each 10 word per minute increase in their reading speed.
• C)Reading speed = -40.738 + 2.260433 × Typing speed; We estimate that the reading speeds for these secretaries increase about 22.60433 words per minute for each 1 word per minute increase in their typing speed.
• D)Typing speed = -40.738 + 2.260433 × Reading speed; We estimate that the typing speeds for these secretaries decrease about 40.738 words per minute for each 10 word per minute increase in their reading speed.
• E)Typing speed = -40.738 × Reading speed + 2.260433; We estimate that the typing speeds for these secretaries decrease about 40.738 words per minute for each 10 word per minute increase in their reading speed.

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Definitions:

Individual's Freedom

The rights and liberties that allow an individual to act, speak, think, and pursue happiness without undue interference or restriction from others or the government.

Attack On Fort Sumter

The bombardment and surrender of Fort Sumter in Charleston Harbor on April 12, 1861, marking the beginning of the American Civil War.

1861

The year that marked the beginning of the American Civil War, following the secession of several southern states from the Union.

Lincoln

The 16th President of the United States, Abraham Lincoln, known for leading the country during the Civil War and abolishing slavery.