A sample of size n= 44 has sample mean x= 56.9 and sample standard deviation s = 9.1. a. Construct a 98% confidence interval for the
population mean u.
b. If the sample size were 12 = 30, would the
confidence interval be narrower or wider?

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1