Ms Hassan lecture on qualitative research techniques less than 40 chars

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

x ² = chi-square statistics O i = observed frequency in the i th cell E i = expected frequency on the i th cell

R i = total observed frequency in the i th row C j = total observed frequency in the j th column n = sample size

[object Object],[object Object]

Test the hypothesis and find the Chi square value. Tabulated value for 1 DF at 5 % level is 3.841 EXPECTED OBSERVED MALE 50 45 FEMALE 50 55

[object Object],[object Object],[object Object],[object Object],= 1 ( Calculated value) Given: Tabulated value is 3.814 Since calculated value is less than tabulated value, accept the null hypotheses. Thus, we can conclude that the population is evenly distributed.

Test whether income and type of school are independent. 77.78 INCOME PUBLIC SCHOOLS GOVT SCHOOLS LOW 494 506 HIGH 162 438

Observation Observed value Expected value Chi Square Row 1 P 494 Row 1 G 506 Row 2 P 162 Row 2 G 438

A chemical plant processes sea water to collect sodium chloride and magnesium. From scientific analysis, sea water is know to contain sodium chloride, magnesium and other elements in the ratio of 62:4:34. A sample of 200 tons of sea water resulted in 130 tons of sodium chloride and 6 tons of magnesium. Is this data consistent with the significance level of 5%? 16.246 SALTS OBSERVED EXPECTED SODIUM 130 124 MAGNESIUM 6 8 OTHERS 64 68

[object Object],22.161 MEN WOMEN TOTAL AWARE 50 10 60 UNAWARE 15 25 40 TOTAL 65 35 100

[object Object],5.6 1 2 3 4 5 6 7 8 9 10 Demand 30 31 32 33 34 35 36 37 38 39 Observed freq 13 10 7 10 6 9 12 10 14 9

[object Object],4 Actors A B C D E F Total Freq 24 20 32 25 28 21 150

[object Object],Opinion Managers Blue collor W Agree 58 66 Disagree 34 24 No opinion 8 10 Totals 100 100

Ms Hassan lecture on qualitative research techniques less than 40 chars

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Ms Hassan lecture on qualitative research techniques less than 40 chars