SKEWNESS RANGE (90%RANGE-NORMAL DISTRIBUTION)

n LOWER LIMIT UPPER LIMIT25 -0.726 0.72630 -0.673 0.67340 -0.594 0.59450 -0.539 0.53960 -0.496 0.49670 -0.462 0.46280 -0.435 0.43590 -0.411 0.411100 -0.391 0.391150 -0.322 0.322200 -0.281 0.281300 -0.23 0.23400 -0.2 0.2500 -0.179 0.179

KURTOSIS RANGE (90%OF TIME-DISTRIBUTION NORMAL)

n LOWER LIMIT UPPER LIMIT50 -0.81 1.2375 -0.7 1.02100 -0.62 0.87150 -0.53 0.71200 -0.47 0.62300 -0.4 0.5400 -0.35 0.43500 -0.32 0.39

1. A STUDY OF JOB SATISFACTION WAS CONDUCTED FOR FOUR OCCUPATIONS.JOB SATISFACTION WAS MEASURED USING 18 ITEM QUESTIONNAIRE WITH RATING OF 1 TO 5 WHERE 5 SHOWED MRE SATISFACTION. SUM OF 18 SCORES FOR EACH INDIVIDUAL IS GIVEN BELOW

OCCUPATION SATISFACTION SCORELAWYER 42PHYSICAL THERAPIST 86LAWYER 55SYSTEMS ANALYST 78SYSTEMS ANALYST 71CABINET MAKER 61LAWYER 78PHYSICAL THERAPIST 69SYSTEMS ANALYST 66CABINET MAKER 74LAWYER 80CABINET MAKER 50SYSTEMS ANALYST 59PHYSICAL THERAPIST 76PHYSICAL THERAPIST 63LAWYER 84LAWYER 73SYSTEMS ANALYST 60LAWYER 76

PROVIDE A CROSS TABULATION OF OCCUPATION AND JOB SATISFACTION SCORE

2. THE CLOSING PRICES OF COMMON STOCKS ARE GIVEN BELOW

20.63,34,43.2,36.77,45,38,21.63,52,14,25.67,33.63,24.25,45.65,37

CONSTRUCT FREQUENCY AND RELATIVE FREQUENCY DISTRIBUTION AND CONSTRUCT CUMULATIVE FREQUENCY DISTRIBUTION. DRAW A HISTOGRAM FOR THE SAME

3.FOUR COMPANIES STOCK PRICE DATA (42 trading days)

STATISTIC IBM EDS MAYTAG WHIRLPOOLMEAN 86.4 19.86 18.39 59.8SD 1.7 0.59 1.59 1.94SKEWNESS 0.51 1.04(RIGHT

SKEWED)0.23 -0.48

KURTOSIS -0.62 0.72 -1.4 -0.16CV(%) 2 3 8.6 3.2QUARILE 1 84.97 19.4 17.07 58.53MEDIAN 86.25 19.8 18.1 60.2QUARTILE3 87.37 20.13 20.11 61.28

INTERPRET THE ABOVE TABLE

4. Citibank recorded the no of customers who used ATM during the noon hour on 32 consecutive workdays. Use excel to sort the data and find out percent of observations that lie within 1 and 2 standard deviations of the mean with a normal distribution

25,37,23,26,30,40,25,26,39,32,21,26,19,27,32,25,18,26,34,18,31,35,21,33,33,9,16,32,35,42,15,24

5. For the following tables a)Sort the data b)Make a histogram c) Calculate measures of central tendency and dispersion and interpret d) Check for outliers e) Calculate quartiles and interpret

Advertising dollars as percent of sales in selected industries

INDUSTRY PERCENTBEVERAGES 7.4COMPUTER DATA STORAGE DEVICES 1.8COOKIES 3.5DRUG 0.9GREETING CARDS 3.5GROCERY STORES 1.1ICE CREAM STORES 2JEWELLERY STORES 1MANAGEMENT SERVICES 4.6SHOE STORES 3STEEL WORKS 1.9TOY SHOPS 3CABLE TV 1.3PERFUME&COSMETICS 11REAL ESTATE 4

Caffine Content of Randomly selected Beverages

Company/Brand MG/OZCOCA COLA CLASSIC 2.83DIET ALE 8 3.67INCA KOLA 3.08KMX(BLUE) 1MOUNTAIN DEW 4.58NESTTEA PEACH 1.33VANILLA COKE 2.83NESTTEA SWEET 2.17RC EDGE 5.85

MR PIBB 3.33PEPSI ONE 4.58ROYAL CROWN COLA 3.6

6. Use excel to draw appropriate graphs

a) shipments worldwide of PC (2002)

COMPANY UNITS(000)HP 21478DELL 20112IBM 7928NEC 4550TOSHIBA 4237OTHERS 74046TOTAL 132351

B) 2001 Average Assembly Productivity

FIRM HOURS PER VEHICLENISSAN 17.92HONDA 19.78MITSUBISHI 21.82TOYOTA 22.53NUMMI 22.68GM 26.1FORD 26.87CAMI 28.97AUTO ALLIANCE 30.42CHRYSLER GROUP 30.82