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A consumer organization estimates that 34% of the households in a particular community have one television set, 39% have two sets, and 18% have three or more sets. If two households are chosen at random, what is the probability that at least one has a television set?
Assume the population standard deviation (s) is 0.5 and the sample size (n) is 100. Calculate the values for alpha, a type I error and beta, a type II error. (To calculate Beta, consider a mean that is 1 standard error away from the lower end valu..
Draw a scatter diagram of the following bivariate data.
Suppose that distribution of grades has average of 78 with standard deviation of 11. Find the appropriate cutoff points for the grades A and F.
What can you conclude from Chebyshev's theorem about the percentage of adults in the town whose heights are between 57.3 and 77.7 inches? Please show work.
Discuss how the Empirical Rule works and how it relates to the bell curve. Then, explain Chebyshev's Theorem and how it is different from the Empirical Rule.
Does the regression equation account for a significant portion of the variance in GPA? Use ∝ = .05 to evaluate the F - ratio.
A shipment of 500 dolls is received by Panda Importers. The quality control manager selects a random sample of 75 to test. Five are bound to be defective. Construct a 90 percent confidence interval for the population proportion of defective dolls ..
In a column, write the sample space for the experiment that consists of observing the day's production.
find probabilty that the average of those counts is more than 83.0 mosquitoes per square meter. Assume the variable is normally distributed.
The probabilities of low, medium and high compliance are 0.3, 0.4, and 0.3, respectively
Calculate the probability of a type ii error for the following hypotheses when µ = 37:
Use the confidence level and sample data to find a confidence interval for estimating the population mean m.
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