Question

P(Z<z)	z		Mu	Sigma	x
0.2735		FALSE	202	65		FALSE
0.8615		FALSE	543	60		FALSE
0.0790		FALSE	352	244		FALSE
0.3020		FALSE	552	348		FALSE
0.4139		FALSE	787	255		FALSE
0.9537		FALSE	643	499		FALSE
0.9127		FALSE	949	60		FALSE
0.7930		FALSE	68	66		FALSE
0.4808		FALSE	246	205		FALSE
0.3821		FALSE	-93	4		FALSE
0.3747		FALSE	256	50		FALSE
0.0671		FALSE	-123	6		FALSE
Instructions:	Complete columns B and F. Don't round column F.
Notes:	Skill with no specific practice set: Finding z and x for P(Z>z). These must be found by either subtracting from 1 or reversing sign of z.

Answer 1

P(Z<z)	z		Mu	Sigma	x
0.2735	-0.6023	FALSE	202	65	162.8530	FALSE
0.8615	1.0871	FALSE	543	60	608.2250	FALSE
0.079	-1.4118	FALSE	352	244	7.5135	FALSE
0.302	-0.5187	FALSE	552	348	371.5074	FALSE
0.4139	-0.2175	FALSE	787	255	731.5314	FALSE
0.9537	1.6818	FALSE	643	499	1482.2378	FALSE
0.9127	1.3576	FALSE	949	60	1030.4542	FALSE
0.793	0.8169	FALSE	68	66	121.9137	FALSE
0.4808	-0.0481	FALSE	246	205	236.1301	FALSE
0.3821	-0.3000	FALSE	-93	4	-94.1999	FALSE
0.3747	-0.3194	FALSE	256	50	240.0285	FALSE
0.0671	-1.4977	FALSE	-123	6	-131.9865	FALSE

P(Z < z) = p

z = normsinv(p)

X = mean + z *sd