Assume the normal distribution applies to a scenario where you are given H1: p < 0.08 in a test using a significance level of a = 0.01. Find the critical z value(s). z= -2.33

z= +/- 1.41

z= -1.41

z= 0.5319

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.