If we are interested in testing whether the proportion of items in population 1 is larger than the proportion of items in population 2, the Select one: a. alternative hypothesis should state p1 - p2 > 0. b. alternative hypothesis should state p1 - p2 < 0. c. null hypothesis should state p1 - p2 > 0. d. null hypothesis should state p1 - p2 < 0.

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.