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OpenStudy (anonymous):

if the heights of 99.7% of American men are between 5' and 7' is your estimate of the standard deviation of height of American men? a) 1 inch b) 3 inches c) 4 inches d) 6 inches e) 12 inches I don't understand how to figure this out?

OpenStudy (anonymous):

@ankit042

OpenStudy (anonymous):

C( 4 inches

OpenStudy (anonymous):

@chrissaxe how did you get that? ihow to do it

OpenStudy (anonymous):

I don't understand how to do it

OpenStudy (anonymous):

@skinny23 thats a good question lol idk im bored in class and just guessed lol.

OpenStudy (anonymous):

can someone who knows this help me please?

OpenStudy (ankit042):

I think we will assume it be a normal distribution. Now use the tables to find the Z value and use the formula

OpenStudy (anonymous):

so would I do 5-7/ 99.7%?

OpenStudy (ankit042):

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