Question 1138403
For the first, look for the probability being 0.0915 on each side, half of 0.183
rounded, that is 0.225 on each side
so p(-0.23<z<0.23=0.183

probability of z< -1.05 is 0.1575
so need to find ).8008 higher or z of 0.9583
That is z=+1.725 or +1.73