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A. What distinguishes a histogram from a bar chart?
B. What would be an appropriate graphical representation to show the dispersion of home prices in a particular city, such as San Diego? Consider what would be the dependent (y) and independent (x) variables? Explain your reasoning.
Crystal Ball requires the following steps:
Identify the independent and dependent variables, and Construct a nominal, ordinal, and interval level measure for each independent and dependent variable.
Henry performed a two-tailed test for an experiment in which N = 24. He could not find his table of t critical values, but he remembered the tcv at df = 13. He decided to complete his obt.with this tcv. Is he more likely to make a type I or II err..
Use a scatter plot to determine the relationship between the x values and the y values.
Suppose that the population of heights of male college students is approximately normally distributed with mean m of 68 inches and standard deviation s of 3.75 inches. A random sample of 16 heights is obtained.
Find out the variance for percentage of tickets? Determine the probability that your sample will have the average between 70 and 75?
Be sure the appropriate assumptions and conditions are satisfied before you proceed.
Use this information to construct a probability table, and then calculate each of the following probabilities:
If sample of size 10 packages is randomly chosen, and 5 percent rate holds, determine the probability that exactly 2 packages in the sample arrive late?
What is the probability that the sample mean will be greater than M = 510. In symbols, what is p (M>510)?
If you are told a population has a mean of 25 and a variance of 0, what must you conclude? a) Someone has made a mistake. b) There is only one element in the population.
At significance levels of .05 and .01 test H 0 : the factors A and B are independent.
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