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Suppose that for he company produces Independence Day, the company produces special bags containing 100 pieces of candy where 30 are red, 30% are white, and 40% are blue. If two pieces of candy are chosen from the bag, find the probability that they are both red, given that neither is blue.
Finding the probability that a randomly selected cat will cost more than a randomly selected dog in terms of their annual medical costs.
A regression model between sales (Y in $1,000), unit price (X 1 in dollars) and television advertisement (X 2 in dollars) resulted in the following function: = 7 - 3X1 + 5X 2 For this model SSR = 3500, SSE = 1500, and the sample size is 18...
A major problem resulting from the lack of randomization in a cohort study is: the possibility that a factor that led to the exposure, rather than the exposure itself, might have caused the disease.
When performing a 2-way ANOVA with replication you must first: A) Perform an interaction hypothesis test B) Take out the error because you ran replicates and error makes no sense with replicates
How many participants need to be enrolled in each group to have a 90% chance of detecting a significant difference using a two sided test with α =0.05 if compliance is perfect?
A group of 12 patients are given the medicine. If the claim is true, what is the probability that 8 have relief within a few minutes?
Calculate a 95% upper confidence bound on the mean. Compare this bound with the upper bound of the two-sided confidence interval and discuss why they are different.
What sample size must you take to be 96% confident that the results will be within $.75 of the true mean cost per call?
For this assignment employ the data below which was taken from the previous online class. Find out if the data is qualitative or quantitative, continuous or discrete, and determine the level of measurement.
Of 260 females, 224 answered yes. Construct a contingency table to evaluate the probabilities. What is the probability that a respondent chosen at random:
a population has mu100 and sigma20. if you select a single score from this population on the average how close would it
The data are shown below. Generate a 95% confidence interval for the difference in mean HDL levels between men who exercise regularly and those who do not.
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