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Describe a business-related situation in which you would expect there to be a strong relationship (correlation) between an independent and dependent variable. Define each variable, state whether it is the independent (X) or dependent (Y) variable, and provide a table of mock data (or some actual data if available) for 10 observations.
Calculate the average or the median of the average or medians of the samples and compare it with the average of the population.
What is the total amount spent on consumer goods?
A developmental psychologist is studying memory development in children. He is interested in determining the exact age at which children began to recall long-term episodic memories.
Play 100 games of scraps and empirically determine an estimate for the probability of winning.
Determine a 95% confidence interval for proportion of all voters in favour of candidate.
A medical research project examined the relationship between the subject's weight and recovery time from surgical procedure, as shown in the table below.
Comparing the experimental and theoretical probabilities, can you say the die used in this experiment is a fair die? Why or why not?
A study of 40 bowlers showed that there average score was 186 the standard deviation of the population is 6. Find the 95% confidence interval of the mean score for all bowlers.
The casino game craps is based on rolling two dice. Here is the assignment of probabilities to the sum of numbers on the up face when two dice are rolled:
Use α =.01 and test for a significant difference. What is your conclusion?
You have 4 groups that you are trying to find if there is a difference in any of the population means. In each group there are 7 observations. The given level of significance is an alpha of .005. Your MSA is 6,200 and your MSW is 1,000. Will you r..
Suppose that the number of calories in McDonald's Egg McMuffin is normally distributed random variable with mean of 290 calories and standard deviation of 14 calories.
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