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In Module 4, we considered Mary's interest in doing a study to see if learning of 6th graders on a math lesson is affected by background noise level. There, she was planning to use 2 noise conditions and then analyze her outcomes using a t-test for independent groups. Describe the study Mary might plan where she would use a one-way analysis of variance (ANOVA) for independent groups instead of a t-test to study differences between noise levels. What is her independent variable here? Describe the conditions she could create for this study. What is her dependent variable? Describe a way to measure the DV so that each participant would have one score at the end that would be on a continuous scale of measurement. Support your responses.
From a practical point of view, what is the difference between the frequency distribution and relative frequency distribution? Why is a cumulative relative frequency distribution so much more informative that just the relative frequency distributi..
lara wang is planning a driving tour. while she is interested in seeing the twelve national monuments listed here she
1. the scores on the mathematics section of the sat typically follow the normal curve. suppose the average was a 510
in the binomial probability distribution let the number of trials be n 3 and let the probability of success be p
As a quality engineer working on the Rangdo production line, you have determined that the probability of producing a defective part is 6%.
They hope to use a sample size such that, with probability 0.95, the error will not exceed 0.04. What sample size will ensure this, regardless of what sample proportion value occurs when they gather the sample?
a study is to be conducted on the proportion of u.s. citizens who believe the minimum wage should be raised. what is
Find out the slope, b, and the intercept, a, for the least-squares line. Write the equation of the least squares line.
The value of the z-score that is obtained for a hypothesis test is influenced by several factors. Some factors influence the size of the numerator of the z -score and other factors influence the size of the standard error in the denominator.
A product is made up of two subsystems in parallel. Subsystem one consists of ten elements in series each with a failure rate of 1/100. The second subsystem consists of 5 elements in series each with a failure rate of 1/200. What is the overall re..
Determine the coefficient of determination (Use Megastat or Excel, Tools, Data Analysis, Regression function). Interpret the result.
true or false if a distribution of scores is transformed into z scores the absolute value of the sum of the positive z
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