6. two separate samples receive different treatments. after treatment, the first sample has n = 9 with ss = 462, and the second has n = 7 with ss = 420. a. compute the pooled variance for the two samples. b. calculate the estimated standard error for the sample mean difference. c. if the sample mean difference is 10 points, is this enough to reject the null hypothesis using a two-tailed test with α = .05? gravetter, frederick j. statistics for the behavioral sciences (p. 329). cengage learning. kindle edition.

Which of the following transformations will always produce a congruent figure?

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.