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In 1990, Pepsi sold 65 million cans of diet Pepsi. In 2010, Pepsi sold 100 million cans of Pepsi. Assuming the increase in sales was consistent year over year, what was the average annual increase (%) from 1990 - 2010 of cans sold?
Identify each of the following as an independent-samples design or a paired-samples design. For each, identify the independent variable and its levels.
The following data set represents the samples that result after sampling with replacement from the original data set five times.
The average age in the sample was 22.5 years with a standard deviation of 5 years. Construct a 95% confidence interval for the true average age of the consumers.
This theory could be tested by a case-control study in which equal numbers of infantile paralysis victims and nonvictims were randomly sampled to determine.
a researcher wants to determine if there is a significant difference in the standard deviations of the number of weekly
What is one instance where you have seen correlation misinterpreted as causation? Please describe.
Find out the following probabilities. Probability that exactly 27 items will be good.
suppose the average family of 4 washes 2000 lbs of laundry each year. assume the variable is normally distributed with
Mr. Gorfin watched four movies last weekend. If the first two were dramas, what is the probability that the fourth one was a drama as well?
question a feed company produces a livestock mix from four possible ingredients corn peanuts oats and a vitamin
the following graph shows the population of washington d.c. in 2000 and in 2010. what is wrong with this graph? draw a
What are the two variables under consideration? What is the population under consideration? Does an association exist between the variables "birth region" and "party" for the U.S. presidents?
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