document.write( "Question 1182376: The Precision Scientific Instruments company manufactures thermometers that
\n" ); document.write( "are supposed to read 0
\n" ); document.write( "𝑜𝐶 at the freezing point of water. Tests on these
\n" ); document.write( "instruments revealed that at the freezing point of water some thermometers
\n" ); document.write( "give readings above zero degrees Celsius while other thermometers give
\n" ); document.write( "readings below zero degrees Celsius with an average of zero degrees Celsius
\n" ); document.write( "and a standard deviation of the readings ion 0.9
\n" ); document.write( "𝑜𝐶. Assume that the readings are
\n" ); document.write( "normally distributed,
\n" ); document.write( "1. If a sample of 40 thermometers is picked from the stock purchased from
\n" ); document.write( "this company, what proportion would read between +𝟎. 𝟓𝒐𝑪 and +𝟏. 𝟐𝒐𝑪.
\n" ); document.write( "2. The lengths of pregnancies are normally distributed with a mean of 260 days
\n" ); document.write( "and a standard deviation of 15 days. If we stipulate that a baby is premature if
\n" ); document.write( "the length of pregnancy is in the lowest 4%, find the length that separates
\n" ); document.write( "premature babies from those who are not premature.
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Algebra.Com's Answer #812430 by ikleyn(52803)\"\" \"About 
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