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QUESTION 1
You are designing an experiment in which you play different types of music to see if it helps with memory. You have decided to try three different types of music (Hard rock, Classical, Pop), as well as no music at all. Subjects will read a story, and be given a short quiz afterwards. What is the explanatory variable?
A. Type of music
B. Quiz results
C. Hard rock
D. No music
QUESTION 2
Imagine you've designed a survey. Which of the following questions will give you qualitative data?
A. What is your age?
B. What is your sex?
C. What is your pulse rate?
D. How many times do you visit a doctor in a year?
Which is the confidence level of the hypothesis test for a known critical value of t=2.052? Caution: Think it through.
Use the commutative and associative properties of multiplication and exponential notation to rewrite the product.
What is the p-value for this hypothesis test, rounded to four decimal places?
An economics professor states on her syllabus that final grades will be distributed using the normal distribution. The final averages of 300 students.
Compare and contrast the pros and cons of free trade, including the positive and negative effects on developing countries.
How would you employ motivational theories when managing a virtual team?
If the answer cannot be calculated, enter zero (0) as your answer. Round to 4 decimal places otherwise. YES, you need, therefore, to look at the 5th decimal place.
More on men's heights. The distribution of heights of young men is approximately Normal with mean 70 inches and standard deviation 2.5 inches.
Briefly summarize the partnership business structure and the equity rights partners have, both in the context of managerial rights and ownership.
(1) What is the distribution of X? (2) Find the mean and variance of X.
Test the hypothesis at the 0.05 level. What is the value of the test statistic calculated from the sample data? What is the critical value of the test statistic?
Write the probability statement and solve. What is the 95% confidence interval for temperature. Interpret it.
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