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Suppose that a marketing firm sends questionnaires to two different companies. Based on historical evidence, the marketing research firm believes that each company, independently of the other, will return the questionnaire with a probability of 0.30. What is the probability that only one of the questionnaires will be returned? Place your answer, rounded to 2 decimal places, in the blank. For example, 0.23 is a legitimate entry.
Sixty percent of the families in a certain community own their own car, thirty percent own their own homes, and twenty percent own both their own home and own car. If a family
What is the probability that at least one of the 24 people would have seen the cut if it was there? How might we estimate what the assumed probabilities in a would actually
2.Describe the advantages and disadvantages of quasi-experiments? What is the fundamental weakness of a quasi-experimental design? Why is it a weakness? Does its weakness
A study done by the Ohio State University Medical Center examined whether or not taking an aspirin a day would help colon cancer patients reduce the chance of getting subs
If you were constructing a 99% confidence interval of the population mean based on a sample of n where the standard deviation of the sample s = 0.05, what is the value of the
Pick any other variable you are interested in and do a simple 2-way ANOVA without replication. Why did you pick this variable and what do the results show? Using the results
A researcher wants to predict graduate-school grade point average (GPA) from GRE verbal scores (which is what the pesky GRE is supposed to do, anyway!). She gathers data on
We test if the mean rent of all downtown Pittsburgh one bedroom apartments is different from the mean rent of all non-downtown one bedroom apartments by examining a random sam
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