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When calculating Pearson's Chi-square statistic for the association of two nominal variables, we can construct a contingency table that breaks the data down into k x l categories, where k and l are the number of categories for each nominal variable. For example, one variable describes vaccinated or unvaccinated (2 categories) and one describes whether participants contracted the disease or not (2 categories). So the contingency table is broken into 4 groups: vaccinated and diseased; vaccinated and healthy; unvaccinated and diseased; unvaccinated and healthy.
To calculate the chi-squared statistic, we must know the observed and expected values for these kxl categories. What does the expected value represent?
Determine the area under the standard normal curve that lies: (a) to the left of Z = -2.31 (b) to the right of Z = -1.47 (c) between Z = -2.31 and Z = -1.47 (d) between Z = 1.47 and Z = 2.31
question 1 a box contains 8 red balls and 10 yellow balls. how many different ways can two balls be randomly selected
in a recent poll of 750 randomly selected adults 590 said that it is morally wrong to not report all income on tax
the below two question must have a minimum 250 word count and use examples to support the solution. only use usa based
Determine and record how much of the math grade can be explained by the PE grade? How much of the Writing grade can be explained by the Reading grade?
If John Lennon had died a long, painful and expensive death from lung cancer, would you have devoted a page to a harangue against the product of some.
In a non instanteneous receipt model, daily demand is 55 units and daily production is 120 units, Co=$70 and Cc=$4 per unit per year. What is the maximum inventory level?
An estimate of the standard deviation of the proportion of carbon monoxide is 0.25. Find a variable sampling plan and explain its operation.
An operations manager would like to estimate the average service time at a fast food restaurant. A random sample of 35 customers is selected.
1) The alternative hypothesis is a
Use an odds ratio to answer the following question: How much more likely is a county to vote Democratic in the 2016 election, given that at least
You calculate a p-value of 0.0667. What is the highest possible significance level you can have?
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