The coordinates of the vertices of a right triangle are (0,0) (5,0) and (0,3). which of the following statements is true? a. the midpoints of the legs are (0, 1.25) and (2.5,0) b. the shorter of the two legs of the triangle is positioned on the x-axis c. the vertex of the right angle is located at (5,0) d. the length of the hypotenuse is 5

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Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?

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