Concerning about rounding off numbers in the solutions/answers, consider the following rules. ox = -,2 decimal places Chapter 3 2 = K-H 2 decimal places Probability = 4 decimal places = %, 2 decimal places E = 2 decimal places Chapter 4 t = 2 decimal places z-test = - *-4, 2 decimal places Chapter 5 t-test = =# 2 decimal places p-value = 4 decimal places = %, 2 decimal placesQuestion 1 2 Points A confidence statement is given as P(19.9