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A department chair in an academic department wanted to know if there was a difference between spring and fall enrollment in his department. The department offered the same six courses both semesters. What test should he conduct to determine if there is a significant difference in the enrollment between the semesters? Write up the results and determine what do the results mean?
Here is the data set:
Spring Fall
87 3090 3556 4048 4539 5050 55
information about a regression analysis includes an intercept of 5.99 and a slope of 0. make a prediction of y based on
construct a confidence interval of the population proportion at the given level of confidence. x105 n150 95
This shuttle component functions successfully provided that at least one of the n systems functions properly. Find the probability that this shuttle component functions successfully if n - 2.
What have you learned about statistics? In developing your responses, consider - at a minimum - and discuss the application of each of the course elements in analyzing and making decisions about data (counts and/or measurements).
What was the purpose of calculating a Cohen's d? When is a Cohen's d calculated? Interpret d=.90. What does it mean in this example?
What is the margin of error of µ?? Interpret the results?
If it is possible to determine the probability that a sample of size 5 has an average amount saved in a 401(k) plan that is more than $115,260, do so.
A "one-shot" device can be used only once; after use, the device (e.g. a nuclear weapon, space shuttle, automobile air bag) either is destroyed or must be rebuilt.
Draw on the materials from your Quantitative Research Methods for Professionals in Education and Other Fields and Discovering Statistics Using IBM SPSS Statistics texts, avoiding the problems richly cited in the Lavrakas, Mane, and Laszlo's 2010 a..
Developing marketing strategies for travel to Hawaii. In 1997 approximately one-third of all tourists to Hawaii were from Japan.
Success in college. Colleges use SAT scores in the admissions process because they believe these scores provide some insight into how a high school student.
Compute the standard error (OM) for each of the fallowing sample sizes, assuming a population mean of 100 and a standard deviation of 20:
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