A study of the differences in cognitive function between normal individuals and patients diagnosed with schizophrenia was
Question:
a. Define the parameter of interest to the researchers.
b. Set up the null and alternative hypothesis for testing the researchers theory.
c. The researchers conducted the test, part b, and reported a p -value of .001. What conclusions can you draw from this result? (Use α = .01.)
d. Find a 99% confidence interval for the target parameter. Interpret the result. Does your conclusion agree with that of part c?
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