-If a Correlation Coefficient Calculated for N = 14 And is

question 76

Multiple Choice

$$\begin{array}{l}\text { The western city wishes to see if there is a relationship between the summer temperature and the amount }\\\begin{array} { c c c } & \left. \operatorname { Temp } ^ { \circ } { } ^ { \circ } \mathrm { C } \right) & \text { Kilowatts, } { } ^ { y } \\& 22.7 & 680 \\& 25.5 & 760 \\& 29.4 & 910 \\& 36.6 & 1,510 \\& 38.8 & 1,170 \\& 27.2 & 837 \\\text { of electricity used (in kilowatts) . } & 24.4 & 600 \\& 40.5 & 1,800\end{array}\end{array}$$
-If a correlation coefficient calculated for n = 14 and $\alpha = 0.01$ is found to be r = 0.856, what is the test value for the t - test?

• A) 4.059
• B) 5.736
• C) 2.851
• D) 6.374

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Definitions:

Chronological Age

The actual age of a person measured in years from their date of birth.

Mental Age

A measure of an individual's cognitive ability expressed as the age at which an average individual reaches the same ability level.

Critical Age

A specific period in development during which an individual is particularly receptive to acquiring certain skills, such as language, often hypothesized to end at puberty.

Intellectual Age

A measure of a child's mental abilities expressed in terms of the average abilities of children at a certain chronological age.