Good evening,

I hope you are well.

I would please like some assistance and an explanation on each of the following sub questions of question 2 please.

I look forward to your reply.

Question 2 1. The waiting time, in minutes, for a random sample of 100 patients at a certain clinic shows a mean of 70 minutes with a standard deviation of 28 minutes. Construct a 99% confidence interval for the mean waiting time of all patients at this clinic. 2. A random sample of 9 cigarettes has an average nicotine content of 2,5 milligram with a standard deviation of 0,8 milligram. Construct a 95% confidence interval for the true average nicotine content of this brand of cigarettes, assuming the distribution of nicotine contents to be approximately normal. 3. The masses of 6 containers of Chow dog food are: 9.5 10.4 9 11 10.5 9.6 Find a 95% confidence interval for the mean mass of all such dog food. Assume an approximate normal distribution