Solution for QID #24960: Language Neurological research has shown that in about 80% o | StudyHelpMe

Language Neurological research has shown that in about 80% of people language abilities reside in the brain's left side Another 10% display right-brain language centers, and the remaining 10 have two-sided language control. (The latter two groups are mainly left-handers ) (a) We select 60 people at random is treasonable to use a Normal model to describe the possible distribution of the proportion of the group that has left-brain language control? Explain. (b) What's the probability that our group has at least 75% left-brainers? (c) If the group had consisted of 100 people would that probability be higher, lower or about the same? Explain why without actually calculating the probability. (d) How large a group would almost certainly guarantee at least 75% left-brainers? Explain.