What is probability that a single car of this model emits more than 0.08 g/ml of
ID: 3149443 • Letter: W
Question
What is probability that a single car of this model emits more than 0.08 g/ml of NOX? A company has 36 cars of this model in its feet. What is the probability that the average NOX level bar x of these cars is above 0.08 g/mol? To estimate the mean score mew of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information, you know that the scores are approximately Normal with standard deviation about 6.4. How large as SRS must you take to reduce the standard deviation of the sample mean score to 1?Explanation / Answer
The sample size, n=[(zalpha/2*sigma)/E]^2=[(1.96*6.4)/1]^2=157.35~157
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