Confidence Intervals

CONFIDENCE INTERVALS SUBMITTED TO:

GROUP – BRAVUQA

Prof. Neeta Gupta

12 Anoop Mathur 17 Ashok Dutt Pant 36 Pranshul Yadav 42 Sahil Bhatia 45 Shashank Sachdeva 54 Vaibhav Gupta

CONFIDENCE INTERVAL • Confidence interval is a range on either side of a sample mean. • Alpha is the significance level used to compute the confidence level. •The confidence level equals 100*(1 - alpha)%. •An alpha of 0.05 indicates a 95 percent confidence level. • Standard deviation is the population standard deviation for the data range and is assumed to be known. • Size is the sample size. • Area under the standard normal curve that equals (1 - alpha), or

CONFIDENCE INTERVALS USING MS EXCEL

CONFIDENCE INTERVALS USING MINITAB