An article published in the Washington Post claims that 45 percent of all Americans have brown eyes. A random sample of ?=78 college students found 30 who had brown eyes. Consider testing ?0:?=.45 ??:?≠.45 (a) The test statistic is ? =  (b) P-value =

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An article published in the Washington Post claims that 45 percent of all Americans have brown eyes. A random sample of ?=78 college students found 30 who had brown eyes.
Consider testing

?0:?=.45
??:?≠.45

(a) The test statistic is ? = 

(b) P-value = 

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