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Does the following example represent an independent measures design or a repeated measures design?
An experiment was conducted to evaluate the effects of medication used to control ADHD between a sample of individuals 17 years-old and below and a sample of individuals 18 years-old and above.
When a research study is defined as a "double-blind" study (which is often times done to test pharmaceuticals), what does that mean or say about the study?
For a one-tailed problem with an alpha level of .01, the critical region makes up ________ % of the distribution while the null region makes up ______% of the distribution.
Both independent measures design and repeated measures design can be used for both t-tests and ANOVA. --- True or False
When using the Pearson-r, once you have completed your hypothesis testing, you can establish a cause-and-effect relationship. --- True or False
a random sample of 100 observations from a quantitative population produced a sample mean of 26.8 and a sample standard
A student takes weekly quizzes in a course and receives the following grades over 12 weeks. Plot the data in a scatter plot with X = week and Y = grade.
Should the patients be told whether they are getting the new drug or a placebo? How would this knowledge probably affect their reactions?
XYZ corporation is interested to test whether a change from five day work week could change the amount driven by field workers of a health department. Is there a evidence that a four day work week would change how many miles workers drive?
Refer to the previous two exercises. Draw a tree diagram to illustrate the probabilities in a situation where you ?rst identify the gender of the student and then identify the type of institution attended. Explain why the probabilities in this tre..
From the 28 tires surveyed, the mean lifespan was 46,500 miles with a standard deviation of 9,800 miles.
is there a relationship between these two measurements for the size of the 30 major league baseball stadiums?a. before
Explain the conclusion that there were no statistically significant differences (p ≥ 0.05) between the benefits of behavioral therapy and psychoanalysis when treating an eating disorder.
For the respondents, fit the linear regression model y = a + bx, where y = price household is willing to pay for cable and x = assessed value of the house.
the air quality in the vicinity of a steel mill is monitored at 7 monitoring locations.a estimate the true mean air
The self-service prices for a sample of 15 retail outlets during Labor Day weekend of 2007 in the detroit, michigan area. What is the arithmetic mean selling price?
(a) How many joules of work are required for your heat pump to deposit one joule of heat energy inside?
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