the population of female college students is approximatley normally distributed w/ mean of 68 in & standard d of 4.20 inches find the proportion of female students whose height is greater than 69 in find the proportion of female students whose height is no more than 69 in please show all steps , so i can try to understand thanks
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Eric Bizzell
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We are given the mean `bar(x)=68` and standard deviation `s=4.2`
(a) Find the proportion of females whose height is greater than 69 inches.
First, convert the raw score of 69 to a `z` score:
`z=(x-bar(x))/s=(69-68)/4.2=.2381` (Note that the `z` score is positive; this indicates that the data value is above the mean)
Since the population is...
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