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Mutual fund flows. As the nature of investing shifted in the 1990s (more day traders and faster flow of information using technology), the relationship between mutual fund monthly performance (Return) in percent and money flow- ing (Flow) into mutual funds ($ million) shifted. Using only the values for the 1990s (we'll examine later years in later chapters), answer the following questions. (You may assume that the assumptions and conditions for regression are met.)
The least squares linear regression is:
Flow = 9747 + 771 Return.
a) Interpret the intercept in the linear model.
b) Interpret the slope in the linear model.
c) What is the predicted fund Flow for a month that had a market Return of 0%?
d) If during this month, the recorded fund Flow was $5 billion, what is the residual using this linear model? Did the model provide an underestimate or overestimate for this month?
the nuchal translucency test is a special ultrasound scan which is widely used as a screeding test for downs syndrome
Determine the area under the standard normal curve that lies: (a) to the left of Z = -2.31 (b) to the right of Z = -1.47 (c) between Z = -2.31 and Z = -1.47 (d) between Z = 1.47 and Z = 2.31
Perform a complete regression analysis using Minitab to determine whether or not the simple linear regression model is appropriate for this data.
Find the 95% confidence interval of the mean score for all 50 golfers. Find the 95% confidence interval of the mean score for all golfers if this is a sample of 80 golfers instead of a sample of 50.
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eight students were given a pretest to measure their public speaking anxiety. then they completed a workshop to reduce
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