AutoSave OFF n A F ? C ... lecture oct 22 - Saved ome Insert Draw Page Layout Formulas Data Review View Tell me Calibri (Body) v 11 VA A E ap Wrap Text v General Paste BI U V V VA v = = Merge & Center v 5 % X V fx A B C D E F G H J K L M Sample computation 1. Convert the following into standard score refer to table No. X S Mean ( * Area 38 1 230 15 210 39 U N 250 25 225 40 210 20 180 Computation of sample size 41 75 50 150 Yamane formula 42 5 45 15 30 N/1+Ne? where e=.05 43 6 220 10 200 1.75 44 7 65 25 100 ex: N = 700 254.5454545 45 8 750 75 550 46 650 85 500 47 10 35 8 50 Sampling techniques 48 Probability 49 random sampling 50 systematic (stratified, cluster) 51 2 Non probability 52 Find the area or percentage/probability convenience 53 quota 54 1. Find the area to the left of Z = - 1.25 0.3944 (.5000-.3944) go to 1.2, then to .05 purposive + 155 0.1056 56 2. Find the area between Z= 2 and Z =3 Z=2 0.4772 57 Z = 3 0.4987 find the difference 58 3. Find the area before Z= - 2 59 60 4. Find the area beyond Z=- 1 Z=- 1 .3413+.5000 61 62 . What is the probability that the blood pressure of a person who walks one kilometer will increase to 130 /90 63 considering that the normal blood pressure is 100/90 and the standard deviation is 40? 64 Given : X = 130/90 65 66 Mean = 100/90 ( take note the word normal) 67 68 Standard deviation = 40 69 70 Note: convert first the raw values into standard values (Z) 71 Z= ( 130 -100) / 40 72 Z =30/40 73 Z = 0.75 Find the area in the table 74 Area = .2734 or 27.34% 75 Sheet1 + Ready Accessibility: Good to go