Advanced Statistics, An exporter of Ginseng Tea? - tea exporters in sri lanka
A ginseng tea exporters that the average weight of packages
Ginseng Tea 20 g of a sample of 36 bags of tea with ginseng
were collected. Sample, the average weight was calculated as
19.35 g. The standard deviation of the weights are known
1.8 g. The weights are usually split.
i. Compute the confidence interval 95% of the average population
Weight.
II Estimated range for the total weight of 50 randomly selected packets of ginseng tea with a confidence level of 95%.
Sunday, January 17, 2010
Tea Exporters In Sri Lanka Advanced Statistics, An Exporter Of Ginseng Tea?
1 comment:
i)
Sample average = 19.35
Standard deviation = 1.8
Standard error of mean = σ / √ n
Standard error of mean = 1.8 / √ 36
SE = 1.8 / 6
Standard error of the mean value of 0.3
CI: 19.35 - (0.3) (1.96)
and 19.35 + (0.3) (1.96)
95% confidence interval (18762, 19938)
Post a Comment