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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
Adults (1)
77.5° F
4.5
Children (2)
74.5° F
2.5
Compare the means of two populations using 96% confidence interval:
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In standard normal distribution standard deviation is always ___.
Test the claim that the actual percentage is 53%. Use a 0.10 significance level.
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Problem based on decision tree - Evaluate the strategy that maximizes the manufacturer's expected net earnings.
2 to every even-numbered card, with aces being 1s. Determine the frequencies of 0, 1, and 2. Use SPSS to get the value of test statistic and p-value.
Determine the variance of X? (Illustrate your computation either in Table or in Equation form)
Make a graph to visualize the problem and state, without doing the calculations, whether the p-value of the test
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