Use the t-distribution and the given sample results to complete the test of the given hypotheses. assume the results come from random samples, and if the sample sizes are small, assume the underlying distributions are relatively normal. test vs using the fact that the treatment group (t) has a sample mean of 8.6 with a standard deviation of 4.1 while the control group (c) has a sample mean of 11.2 with a standard deviation of 3.4. both groups have 25 cases.(a) give the test statistic and the p-value.

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

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step-by-step explanation: