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Compute Spearman rank correlation and test the significance of correlation.
Two groups of students are asked to rank their preference for six types of soft drinks. The following table shows their rankings.
Soft Drink
Group 1
Group 2
1 2 3 4 5 6
3 1 2 5 4 6
6 2 1 5 3 4
Decide the Spearman rank correlation coefficient and test for a significant rank correlation using α = .05.
What is the probability of the person is 20 to 24 years old.What is the probability of the person is 20 to 34 years old.
Each party's position must be statistically sound. Include as suitable graphs, computations, and statistical tests.
Probability distribution described by the following density curve and The expected value of the sum of the weights of the two oranges, in pounds
Describe the sampling distribution of the sample proportion
The data below shows the time to process an inpatient admission, before and after a system usage training session was given. The following hypotheses were formulated for this study.
The sample size n, the sample means, and the sample standard deviations for the two groups are given
Which is the estimated or dear proportion of defective cups in the population?
Based on the scatter diagram, does there appear to be any relationship between the number of assemblers and production? Explain.
A study of 40 bowlers showed that there average score was 186 the standard deviation of the population is 6. Find the 95% confidence interval of the mean score for all bowlers.
The sample size n , the sample means, and the sample standard deviations for the two groups are given below.
At one excavation site 8641 pot shards have been found that not yet been cleaned and identified. What is the probability that:
Explain can you find out statistical support in this poll for that statement. When it comes to the war in Iraq, among which of the subsiquent statements comes closer to your point of view.
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