3 The mass of male giraffes is assumed to have a normal distribution.
Duncan takes a random sample of 600 male giraffes.
The mean mass of the sample is 1196 kilograms.
The standard deviation of the sample is 98 kilograms.
3
- Construct a 94\% confidence interval for the mean mass of male giraffes, giving your values to one decimal place.
3 - Explain whether or not your answer to part (a) would change if a sample of size 5 was taken with the same mean and standard deviation.