On a standardized spatial skills task, normative data reveal that people typically get μ = 15 correct solutions. A psychologist test n = 7 individuals who have brain injuries in the right cerebral hemisphere. The number of correct solutions for these individuals yielded a sample mean of 11 correct solutions and a sample standard deviation of 2.5. Determine whether or not right-hemisphere damage results in significantly reduced performance on the spatial skills task. Test with alpha = .05 and a one-tailed distribution.Identify the independent and dependent variables.In a sentence, state the null hypothesis being tested.Using symbols, state the null and alternative hypotheses.Determine the critical region using a one-tailed test with alpha = .05.Conduct the hypothesis test (Do the math and compare the t-critical and t-obtained values).State your conclusions in terms of H0 (Should you reject the H0or fail to reject/accept the H0).Based on your analysis, is there a relationship between the drug and attention span?

The given question is an example of in-lab experiments, where the experimenter controls the…

Answered: On a standardized spatial skills task,…

Ciccarelli: Psychology_5 (5th Edition)

5th Edition

ISBN:9780134477961

Author:Saundra K. Ciccarelli, J. Noland White

Publisher:Saundra K. Ciccarelli, J. Noland White

Chapter1: The Science Of Psychology

Section: Chapter Questions

Problem 1TY

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On a standardized spatial skills task, normative data reveal that people typically get μ = 15 correct solutions. A psychologist test n = 7 individuals who have brain injuries in the right cerebral hemisphere. The number of correct solutions for these individuals yielded a sample mean of 11 correct solutions and a sample standard deviation of 2.5. Determine whether or not right-hemisphere damage results in significantly reduced performance on the spatial skills task. Test with alpha = .05 and a one-tailed distribution.

Identify the independent and dependent variables.
In a sentence, state the null hypothesis being tested.
Using symbols, state the null and alternative hypotheses.
Determine the critical region using a one-tailed test with alpha = .05.
Conduct the hypothesis test (Do the math and compare the t-critical and t-obtained values).
State your conclusions in terms of H₀(Should you reject the H₀or fail to reject/accept the H₀).
Based on your analysis, is there a relationship between the drug and attention span?