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Research participants read an "eating diary" of either a male or female stimulus person. The information in the diary indicated that the person ate either large meals or small meals. After reading this information, participants rated the person's femininity and masculinity. (Based on a study by Chaiken and Pliner, 1987.)
a. Identify the design of this experiment.
b. How many conditions are in the experiment?
c. Identify the independent variable(s) and dependent variable(s).
d. Is there a participant variable in this experiment? If so, identify it. If not, can you suggest a participant variable that might be included?
a study of fill volumes is conducted at a food canning factory to determine the level of consistency between the two
1.an experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield.
Study have in distinguishing between case-fatality rates in 1990 and 2000-2005 if a two-sided test with significance level .05 is planned? B. How large a sample is needed in the previous problem to achieve 90% power?
Draw a relative frequency histogram to describe the distribution of penny ages. How would you describe the shape of the distribution?
Identify the explanatory variable and the response variable. A teacher wants to determine if the type of textbook used by her students can be used to predict the students' test scores.
Using the EMV criteria (you wish to maximize expected profits in this case) determine what course of action that Optel should take. Make sure to state the best strategy in words.
A sample of 40 random weeks finds a weekly loss mean of $3200 with a standard deviation of $750. Test their claim at the a=0.05 level.
Mary randomly picks three marbles from a jar that contains 3 red and 5 blue marbles.
Travelers arrive at a bus station from 6 a.m., according to a Poisson process with rate λ = 1 per minute. The first bus leaves T minutes after 6 a.m.
One example of public health that I have witnessed firsthand during my clinical rotations in oncology is that of lung cancer caused by a patient history of smoking. During one research study that I was a part of we studied the numbers of lung cancer ..
Use regression analysis to set up and solve whether or not college experience really determines someone's salary in the work place.
Because the coefficient of determination R2 always increases when a new independent variable is added to the model, it is tempting to include many variables in a model to force R2 to be near 1.
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