Q2. A random sample of 35 people is selected in Netherlands and it is found that a typical person drinks 70 liters of beer per year. The standard deviation of the yearly beer consumption is estimated...

a) Construct 99% confidence interval for the mean beer consumption.
b)Test the alternative hypothesis that average beer consumption is different than 70 by setting α=0.01. State your conclusion also in words.

Extracted text: Q2. A random sample of 35 people is selected in Netherlands and it is found that a typical person drinks 70 liters of beer per year. The standard deviation of the yearly beer consumption is estimated as 5. Under the assumption that beer consumption is normally distributed