The level of nitrogen oxides (NOX) in the exhaust of a particular car model varies with mean 0.7 grams per mile and standard leviation 0.15 grams per mile. a) What sample size is needed so that the standard deviation of the sampling distribution is 0.01 grams per mile ? ANSWER: b) If a smaller sample is considered, the standard deviation for ī would be (NOTE: Enter SMALL ED" " A RGED"or "THE SAME" without the quotes ORGER

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Have to answer part a and part b with the given choices:
smaller
larger
the same

The level of nitrogen oxides (NOX) in the exhaust of a particular car model varies with mean 0.7 grams per mile and standard
deviation 0.15 grams per mile .
(a) What sample size is needed so that the standard deviation of the sampling distribution is 0.01 grams per mile ?
ANSWER:
(b) If a smaller sample is considered, the standard deviation for a would be
J. (NOTE: Enter
"SMALLER","LARGER" or "THE SAME" without the quotes.)
Transcribed Image Text:The level of nitrogen oxides (NOX) in the exhaust of a particular car model varies with mean 0.7 grams per mile and standard deviation 0.15 grams per mile . (a) What sample size is needed so that the standard deviation of the sampling distribution is 0.01 grams per mile ? ANSWER: (b) If a smaller sample is considered, the standard deviation for a would be J. (NOTE: Enter "SMALLER","LARGER" or "THE SAME" without the quotes.)
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