Unformatted text preview: and we want 11. Since we know E, we can solve for n and get 66306.25 which must
be rounded up to 66307. (R0unding down would not give us the required accuracy!) 0. Since 11% is not within the conﬁdence interval from part a, we may safely
conclude that 60 Minutes had a greater share of the audience than the wrestling
special did, so exposing the wrestling industry was probably not necessary. d. In general, results from a self-selected sample are not valid as they will
not, in general, be a true random sample and a randomness is a
requirement for all these methods to work. ...
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- Spring '10