Given Vectors $\mathbf { u } = \langle - 1 , - 2 \rangle$

question 93

Multiple Choice

Given vectors $\mathbf { u } = \langle - 1 , - 2 \rangle$ and $\mathbf { v } = \langle 3,5 \rangle$ determine the quantity indicated below. $( 4 \mathbf { u } \cdot 2 \mathbf { v } ) \mathbf { u }$

• A) \(\langle 32,64 \rangle\)
• B) \(\langle 104,208 \rangle\)
• C) \(\langle - 8 , - 16 \rangle\)
• D) \(\langle 8,16 \rangle\)
• E) \(\langle - 64 , - 128 \rangle\)

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Definitions:

Dependent-Sample T Test

A statistical procedure used to compare the means of two related groups to determine if there is a statistically significant difference between them.

Null Hypothesis

A statistical hypothesis asserting that there is no significant difference or effect.

Critical Value

A threshold value used in hypothesis testing, which the test statistic must exceed in order to reject the null hypothesis.

Obtained Value

The actual value achieved from a statistical test, used to compare against the critical value to determine statistical significance.