Acrylic bone cement is sometimes used in hip and knee replac
     Acrylic bone cement is sometimes used in hip and knee replacements to fix an artificial joint in place. The force required to break an acrylic bone cement bond was measured for n = 13 specimens under specified conditions, and the resulting mean and standard deviation were 305.59 Newtons and 44.47 Newtons, respectively. Construct a 98% confidence interval for the true average breaking force of the acrylic bone cement under the specified conditions. 
  
  Solution

