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Examine the role of statistics in homeland security research using the Department of Homeland Security's website. Search for and identify a homeland security report that utilizes a frequency distribution to create a histogram. Explain what the report is and what the histogram represents. Annotate the variables that are being represented in the histogram and whether they are nominal, ordinal or interval/ratio variables. Provide a citation to the data report that you chose from the DHS website. Support your thoughts and ideas with appropriate resources. Respond to at least two of your classmates' postings.
Your initial post should be at least 250-300 words in length. Support your claims with examples from required material(s) and/or other scholarly resources, and properly cite any references.
What would you suggest to be the appropriate statistic tests to use and why ? Any suggestions on stating the hypothesis in a more professional manner?
How much does the low temperature vary on this date? In other words calculate the variance and standard deviation?
1. for a standard normal model find the z-value that is less than the mean and for which 67 of the area under the
what is the probability that the second contestant will win
Card holders should be sampled to meet the original requirements of the sample. Then explain the trade-offs that will occur when you lower the sample to $10,000 to meet their budget.
What is the test value? find the critical value. state what the alternative hypothesis would be H1: customer shows no preference for a specific dessert.
Suppose X is a Rayleigh random variable and is an arcsine random variable, - Furthermore, assume and are independent. Find the PDF of Z =XY.
When you calculate CIs for time on task, I notice that you use the critical value from the t-distribution (TINV(0.05, degrees_of_freedom))
With a single-sample t ratio, the null hypothesis states that:
A club has 225 members. If there is a 60% attendance rate per meeting, find the mean, variance, and standard deviation of the number of people who attend each meeting. Note that this is a binomial distribution.
Recognize strategies that were utilized to control for nuisance variables and minimize threats to valid inference making.
can someone please check my answer for the following pdf if its correct can you then explain how i would get ex in this
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