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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.
a) Find P(r) for r = 0, 1, 2, 3, 4, and 5.
b) Make a histogram for the r probability distribution.
c) What is the expected number of Republicans who will win office in the coming election?
d) What is the standard deviation of r?
If sensitivity and specificity remain constant, determine the relationship of prevalence to predictive value positive and predictive value negative?
In a distribution of scores, the arithmetic mean is 51, the median is 55, and the mode is 62. What is the score, in percentile form, of a subject who does less well than two-thirds of the sample?
Carry out suitable multiple comparison procedure to determine the source of the difference.
The population of lengths of aluminium coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.20 inches. A sample of four metal sheets is randomly selected from a batch. What is the possibility that t..
What proportion of the variability in steel shipments for motor vehicles is described by regression equation?
At 5% level of significance, is there evidence of difference in mean life of bulbs made by the 2 kinds of machines. What is your conclusion?
Estimate and interpret the p-value of the calculated test statistic above.
Obtain a test statistic and p -value. Interpret the results at α = .01.
Describe the data appear the strength of the relationship among variables is sufficient to warrant using linear regression forecasting.
Describe the independent variable and the dependent variables?
Create a scatter plot for the data. Determine the correlation coefficient for the data.
The standard deviation of the population of adult female height scores is 3 inches. A random sample of 50 women yields a mean height of 64 inches. Calculate the standard error of the mean.
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