The P-value is calculated off the Z-stat value or T-stat value. (NOTICE CAPITAL "P".) P-value is the probability (or area in the curve shape) of getting a value of the test statistic that is at least as extreme or more extreme than the one representing the sample data. The critical value is calculated off the significance level "alpha." (Alpha is the area of the normal curve which is more extreme than the cut-off value... more extreme than the critical value). TO FIND CRITICAL VALUES AND P-VALUE WITHOUT PERFORMING A HYPOTHESIS TEST : Stat - calculator - normal Problem #3: Find the P- value for: (round to 4 decimal points) a) Left-tailed test, z =-1.26 P-value = Sketch a normal graph, label the x-axis and shade the corresponding area. b) Right-tailed test, DF= 22, t = 1.52 P-value =_ Sketch a normal graph, label the x-axis and shade the corresponding area. c) Two-tailed test, n = 10, t = 1.801 P-value =_ Sketch a normal graph, label the x-axis and shade the corresponding area. d) Two-tailed test, z = -2.14 P-value =_ Sketch a normal graph, label the x-axis and shade the corresponding area. Problem #4: Find the critical value for: (round to 2 decimal points) a) Left-tailed test, a = 0.10, Za= Sketch a normal graph, label the x-axis and shade the corresponding area. b) Right-tailed test, a = 0.05, Za = Sketch a normal graph, label the x-axis and shade the corresponding area. c) Two-tailed test, a = 0.04, Z a/2 = Sketch a normal graph, label the x-axis and shade the corresponding area