Explain the connection between our chosen alpha level for a hypothesis test and the likelihood of making a Type I error.
What will be an ideal response?
Ans: The alpha level is the probability of making a Type I error; that is, the alpha level is the likelihood of rejecting the null hypothesis when it is true.
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Investigations by Herbert Terrace (1987) involving the chimpanzee, Nim Chimpsky, revealed that after several years of training of a simplified version of ASL (American Sign Language), Nim ____
a. had verbal ability equivalent to that of a teenager b. could only learn a few signs c. could not communicate at all using the sign system d. had virtually no understanding of syntactic structure
Electronic text can be modified in all of the following ways EXCEPT
a. font type, size, and color can be changed b. concepts can be defined and explained c. links can lead to supportive information d. text materials are difficult to read
In motivating children, teachers should
a. give abundant pointless praise b. aim at self-esteem by telling child how smart he/she is c. encourage effort and intrinsic rewards
What can exercise prevent?
a. Heart disease b. Genetic disorders c. Injuries d. Weight loss