The Chapin Social Insight Test is a psychological test designed to measure how accurately a person appraises other people. The possible scores on the test range from 0 to 41. During the development of the Chapin test, it was given to several different groups of people. Here are the results for male and female college students majoring in the liberal arts. Group Sex 1 Male 147 23.49 4.27 2 Female 165 22.85 5.19 Do these data support the contention that female and male students differ in average social insight? Perform a significance test to help you answer this question. (Use a = 0.05 and conservative degrees of freedom.) Ho: H1 -Select- v H2 Ha: H1 -Select- v H2 t = P-value = Conclusion O There is significant evidence that male and female college students differ in average social insight score. O There is no evidence that male and female college students differ in average social insight score.

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Angles in Circles

Angles within a circle are feasible to create with the help of different properties of the circle such as radii, tangents, and chords. The radius is the distance from the center of the circle to the circumference of the circle. A tangent is a line made perpendicular to the radius through its endpoint placed on the circle as well as the line drawn at right angles to a tangent across the point of contact when the circle passes through the center of the circle. The chord is a line segment with its endpoints on the circle. A secant line or secant is the infinite extension of the chord.

Arcs in Circles

A circular arc is the arc of a circle formed by two distinct points. It is a section or segment of the circumference of a circle. A straight line passing through the center connecting the two distinct ends of the arc is termed a semi-circular arc.