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16#14 a)The weights of American newborn babies follow a normal distribution with mean of 119.54 oz...

16#14

a)The weights of American newborn babies follow a normal distribution with mean of 119.54 oz (about 7 pounds 8 ounces) and standard deviation of 0.69 oz In a random sample of 15 newborn babies, the mean weight was calculated to be 119.24 oz .

Find the standard error of the sampling distribution.  Round your answer to 4 decimal places.

b) Using your answer to part (a) what is the probability that in a random sample of 15 newborn babies, the mean weight is more than 120 oz? Round your answer to 4 decimal places.

Find the standard error of the sampling distribution.  Round your answer to 4 decimal places.

math   Statistics-And-Probability   
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Answer #1

Let arcc.x denotes the weight how a qmen.com netoboon babtes follow Gereen, xun(1,0) where (= 119.54 and 0=0.69 a Let n = 15b Now we have a E(F) = 119.24 SECF) = 0 and .0.1782 Themes According to tra questions P( *7120) 7 - E(F) > SEK) SE(F) 120- E(

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