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When applying statistical tests involving comparing two means or a sample to a population mean, there are many organizational applications. For example, Human Resources may want to track entrance exam scores of their new hires. This would be an example of two mean comparison. In terms of the recent election, Gallup may take a sample and compare to a population of candidate votes (sample mean compared to a population mean).
Think of an example in your organization of either one of these tests and discuss its application as well as the risk of type 1 or 2 errors.
The so-called 2-parameter Weibull distribution is defined as follows: F(x) = 1-e-(x/b)a. Using the inverse transform method, derive the formula for generating random numbers for the two-parameter Weibull distribution, where a=3 and b=0.9
Which salesperson should be assigned to each region to minimize total time? Identify the optimal assignments and compute total minimum time.
Translate the following arguments into symbolic form.- If national elections deteriorate into TV popularity contests, then smoothtalking morons will get elected.
q1. calculate each of the following values for the data set below assume it is a population.3.42 4.10 4.15 4.19 4.26
Based on the 2x2 contingency table posted below calculate the chi square test to see if the result rejects the null hypothesis. You can calculate this long hand or use a standard calculator such as found at this site
a recent survey was conducted where 431 of 643 males said they thought u.s. air travel is safer now than it was prior
Find the value of the liner correlation coefficient r, and then find the regression equation of the following table. A company manager wishes to test a union leader's claim that absences occur on the different week days with the same frequencies.
Do these measures of central tendency agree? Explain. What could the measures of dispersion tell us about the results of the quiz?
Explain how you would change the simulation procedure if the assumption was that everyone was randomly guessing, so that the probability of a correct guess was .20 each time.
A high-performance jet aircraft with an autopilot control system has a unity feedback and control system, as shown in Figure DP7.5. Sketch the root locus and select a gain K that leads to dominant poles.
find The probability that it is at least two hours until the first failure occurs, The probability that it is no more than six hours until the first failure occurs and The average time to the first failure.
By using the fact that Martha believes the treatment will decrease the amount of time to fall asleep, describe the null and alternate hypotheses.
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