_____________I. The weights of all babies born at a hospital have a mean of 7.2 pounds and a standard deviation of 0.65 pounds. The mean of the sampling distribution of the means of all samples of 36 babies born at this hospital is _________?
a) 7.2 B 1.2 C) 0.2 D) 0.1083
_____________II. A company has 411 employees and 104 of them are college graduates. The proportion of employees of this company who are college graduates, rounded to three decimal places, is __________?
_____________III. According to the Central Limit Theorem, the sampling distribution of the sample means of any distribution is approximately normal, for any shape of the population distribution, if ____________?
Solution :
1)
The mean of the sampling distribution of the means of all samples of 36 babies born at this hospital is 7.2 .
2)
The proportion of employees of this company who are college graduates = 104 / 411 = 0.253
3)
According to the Central Limit Theorem, the sampling distribution of the sample means of any
distribution is approximately normal, for any shape of the population distribution, if n is 30 or larger
_____________I. The weights of all babies born at a hospital have a mean of 7.2 pounds...
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