A sample of 22 tube inner diameters is taken. The average is 1.031 inches, with a sample standard deviation of .055 inches. Suppose the specification calls for the
pipes to be 1.00 inches inner diameter. What is the highest confidence with which
you can say that the process is out of tolerance?

Given the following similar triangles what is the area of triangle b ? a) 1 b)1.8 c)3.2 d)5

What statement is true? 2x^2-9x+2=-1

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte