A sample of ?00 operational amplifiers is chosen from a large batch and tested to evaluate...
A sample of ?00 operational amplifiers is chosen from a large batch and tested to evaluate if they meet industry standards. Suppose that ?0 out of 100 operational amplifiers meet current standards, construct a ?5 % confidence interval for the fraction of all transistors that meet industry standards. (Hint: use central limit theorem to approximate a binomial distribution as normal)
Homework Answers
Here it is given that ?0 out of 100 operational amplifiers meet
current standards, So 
Now as we see np>5 and nq>5, we can use z distribution to find CI
z value for 95% CI is 1.96 as 
So Margin of Error is 
Hence CI is 
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A sample of ?00 operational amplifiers is chosen from a large
batch and tested to evaluate...
X denote the mean of a random sample of size 25 from a gamma type distribu-...
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In 1181:from scipy import stats fron rath import sgrt Confidence Interval For a sample with size large enough, by central limit theorem we can assume its mean follows normal distribution. And if we also know the standard deviation of the population, we are able to calculate a confidence interval to estimate the population mean. Problem 1 A confidence interval is usually given by sample mean m plus and minus a margin of error r The contidence interval is larger (less...
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