Q1) Which of the given represents difference in 2 population means?
i) µ1 - µ 2
ii) p1 + p2
iii) p1 - p2
iv) µ 1 + µ 2
Q2) Which of the given signifies difference in two population proportions?
i) p1 - p2
ii) µ 1 - µ 2
iii) (µ 1)2/( µ 2)2
iv) p1 + p2
Q3) In controlled laboratory environment, random sample of 10 adults and random sample of 10 children were tested by psychologist to determine room temperature which each person finds most comfortable. Data are sum up below:
|
|
Sample Mean
|
Sample Variance
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|
Adults (1)
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77.5° F
|
4.5
|
|
Children (2)
|
74.5° F
|
2.5
|