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Choose and compute the appropriate descriptive statistics to describe characteristics of the sample under study (such as sex distribution, age, and ethnicity) and the anxiety reported by the sample at pretreatment, making sure to include at least one example each of visual descriptive, a measure of central tendency, and variability. Report the findings in the APA format and write a brief paragraph describing your findings.
What are the assumptions and requirements for an LP model to be formulated and used? Under what conditions will an LP problem: be unbounded? be infeasible? have more than one optimal solution?
Can you provide another explanation for this one: Zc/Tc for 86% confidence interval when the sample size 50?
About 68% of the students at fairview community college favor a new policy regarding parking on campus. suppose that we are interested in the proportion of 45 students in a math class who favor the policy.
Is the estimate from the participants significantly higher than the actual number (µ = 3.1)? Use a one-tailed test with = .05.
Security B has an expected return of 12 percent, a standard deviation of returns of 10 percent, a correlation with the market of 0.7 and a beta coefficient of 1.0.
The test statistic for a two-sided significance test for a population mean is z = -2.12. What is the corresponding P -value?
This problem involves calculating and interpreting the 95% confidence interval for a proportion. While you can use SPSS to determine proportions, you need to calculate the confidence interval by hand.
Explain distribution of sample means (shape , Expected value , and standard error ) for samples of n=36 selected from population with a mean of m =100 and standard deviation of s=12.
Construct a 99% confidence interval for the difference in the proportions of college freshmen and sophomores who purchased used textbooks.
Determine the sample space of one such throw and determine the probability for each event and in the game of Ludo, a player has to throw one die and move a selected token based on the number shown on the die.
Normally distributed with a mean of $ 1750 and a standard deviation of 300. What's the probability that a randomly selected state has a per capita GNP at or below $950?
No estimate of the population proportion is available. How large a sample is required?
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