A researcher compares the frequency of participants who sleep primarily on their stomach, back, or side during the night. What is the critical value for a chi-square goodness-of-fit test at a .05 level of significance?

A) 2
B) 3
C) 3.84
D) 5.99


Ans: D) 5.99

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a. Factorial designs allow for the opportunity to determine whether independent variables combine or interact to influence the dependent variable. b. Testing and interpreting effects in a factorial research design is more complicated than single-factor designs. c. Factorial designs allow researchers to determine whether interaction effects are present among independent variables. d. Factorial designs have the ability to study multiple effects in one study.

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Which is NOT a way a chromosome disorder is created?

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