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A psychiatrist hires you to study whether her clients self-disclosed more while sitting in an easy chair or lying down on a couch. All clients had previously agreed to allow the sessions to be videotaped for research purposes. You randomly assigned 10 clients to each condition. The third session for each client was videotaped and an independent observer counted the clients' disclosures. You reported that "clients made more disclosures when sitting in easy chairs (M = 18.20) than when lying down on a couch (M = 14.31), t(18) = 2.84, p < .05, two-tailed." Explain these results to a person who understands the t test for a single sample but knows nothing about the t test for independent means.
To test whether there is significant mean difference between two groups using independent sample t test.
Create a frequency table for the total number of people that prefer each type of music:
Additionally, student should use graphing function to graph data and calculate regression equation.
Machine which fills quart milk cartons is set up to average 32.2 oz per carton, with standard deviation of 1.2 oz. Determine probability that filled carton will contain less than 32 oz of milk?
The standard deviation of the differences d for the paired sample data s d = ____________
Students will conduct one brief research exercise that will be written up as a research report using APA style.
a random sample of 100 doctors was selected. Suppose you reject the null hypothesis. What conclusion can you draw?
Finding the probability value for the given data using normal approximation
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At α = . 05, does vehicle type vary by mall location?
Find the probability that he will answer all 10 questions correctly.
Single group post-test and internal validity threats - Answer the question either by writing the design name or by describing the design using standard notation
In study of a clinical for an allergy drug 115 of the 204 subjects reported experiencing important relief from their symptoms.
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