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Question: More unusual points. Each of the following scatterplots shows a cluster of points and one "stray" point. For each, answer these questions:
1) In what way is the point unusual? Does it have high leverage, a large residual, or both?
2) Do you think that point is an influential point?
3) If that point were removed, would the correlation become stronger or weaker? Explain.
4) If that point were removed, would the slope of the regression line increase or decrease? Explain.
If for each of the fifty states we plot the paired data consisting of the average income of residents of the state and the number of foreign-born immigrants who reside in the state, then the data pairs will have a positive correlation.
Use the graph of f(x)= x^ to match the function to its corresponding graph. In words describe the transformation that occurs (ex: The graph of f(x) is shifted 6 units to the left).
A gardener grow 20 of these plants and was pleasantly suprised to see 5 blue flowers, 10 red, 2 white and 2 pink. Calculated the probability of this event.
The first has outcome X taking on the values 0, 1, and 2 with equal probabilities; the second results in an (in- dependent) outcome Y taking on the value 3 with probability 1/4 and 4 with probability 3/4.
At the .01 level of significance, is the mean grade of the female students higher than that of the males?
The total duration of baseball games in the major league in the 2011 season is uniformly distributed between 447 hours and 521 hours inclusive.
based on the information compute the confidence interval using the t-distribution1. a tire manufacturer wishes to
Determine whether the following are demonstrative definitions, enumerative definitions, or definitions by subclass.- "Insect" means something such as a fly, an ant, a wasp, or a caterpillar.
Refer to the financial risk analysis example presented at the end of Sec. 22.6, including its results shown in Fig. 22.14. Think-Big management is quite concerned about the risk profile for the proposal.
Review the list of identified causes and effects that you generated in Week 6. Analyze causes and effects of a problem/issue. Apply research to critical analysis of problem/issue.
Arrange these data on an appropriate table, and discuss the association between mortality rate and the use of carbolic acid.
Does this provide evidence that the company has reached its goal? Using your confidence interval, test an appropriate hypothesis and state your conclusion.
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