Birth weights are normally distributed with a mean of 3419 g and a standard deviation of 494 g. If a hospital plans to set up special attention to the lightest 2% of babies, what weight is used for the cut-off separating the lightest 2% from the others?

Question

amistre64 · Answer

you need a zscore for .0200 i believe

amistre64 · Answer

you have a zscore table?

anonymous · Answer

yes

amistre64 · Answer

does it measure the area from the mean or from teh left tail?

anonymous · Answer

from the left tail

amistre64 · Answer

ok, then we need to find the place in middle that is closest to .0200 in area

anonymous · Answer

is it 0.0201?

amistre64 · Answer

sounds good, but id have to know the exact table your looking at :)

follow the row to the left and record that number; follow the column up and add that number to the other one to determine the zscore itself

amistre64 · Answer

-2.05  is what i think it should be

anonymous · Answer

I'm looking at positive zscores, area from the left...

anonymous · Answer

0.201 is .5832. I don't know what to do from there on

amistre64 · Answer

your number dont make any sense

anonymous · Answer

smfh

amistre64 · Answer

|dw:1332705274492:dw|