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Long-term history has shown that 65% of all elected offices in a rural county have been won by Republican candidates. This year there are 5 offices up for public election in the county Let r be the number of public offices won by Republicans. n = 5 r = .65
a) Make a histogram for the r probability distribution.
b) What is the expected number of Republicans who will win office in the coming election?
c) What is the standard deviation of r?
Compute mean x and standard deviation s of data above. Calculate Ho by using traditional/classical method.
What sample size would be required to obtain the error of ±10 square millimeters with 99 percent confidence?
For each of the following problems, assume that the homogeneity of variance assumption has not been met and that you will need to use the adjusted Welch statistic.
Assume P1 and P2 move simultaneously. Represent this game in normal form.
Does the data prove a significant difference in mean times?
Find out the test statistic P-value, and critical value, and state the final conclusion. The mean IQ score of statistic professors is less than 120. Sample data: n = 46. Suppose that = 17, and the significance level is = 0.05.
The function that defines the probability distribution of a continuous random variable is a?For a continuous random variable x, the probability density function f(x) represents.
Based on chi-square table, what is the most correct statement which can be made about the p-value for the test?
The resort's historical climate data suggests that the probability of a good winter with lots of snow during any given year is 40%.
If a technical breakthrough occurred that raised the profit per unit of X 1 to $3, would this affect the optimal solution?
Using the dataset, produce a graph of per capita GDP for Argentina, China, and Canada from 1965 to 1995. Is inequality between these countries increasing?
Construct a probability for the number of students in the sample who watch soap operas.
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