The standard deviation of the population of men's collar sizes is 1.02
inches. A random sample of 12 men was selected and yielded a mean collar size
of 15.50 inches.
a. Calculate the standard error of the mean.
b. Use the z test to establish whether this sample could represent the
population of men's collar sizes which is known to have a mean of 15 inches.
a SEm = .29
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Which statement is true?
a. At five months of age, deaf and hearing children from all cultures make similar sounds. b. At five months of age, deaf and hearing children produce very different sounds. c. At five months of age, children from different cultures produce very different sounds. d. At five months of age, deaf children produce no sounds while hearing childrenproduce many sounds.
The following statement describes experimental results of which of the following: "Behaviors that are reinforced by positive outcomes increase in frequency, whereas behaviors that are followed by negative outcomes decrease in frequency"?
a. Vygotsky c. Skinner b. Erikson d. Bronfenbrenner
A detailed, well-researched biography of a famous historical person is technically an example of the ______ method of research
a. psychometric b. naturalistic observation c. case study d. correlational
James was born with a __________ that included exceptional musical ability, but because he was never exposed to musical instruments or instruction, his musical ability was not apparent in his ____________
phenotype; allele allele; phenotype phenotype; genotype genotype; phenotype