A random sample of the birth weights of 450 babies has a mean of 3200 grams and a standard deviation of 500 grams.Assume the distribution of birth weights is normally distributed.Construct a 99% confidence interval of the mean birth weight for all such babies.

Question 8 (1 point) What is the confidence level for this scenario? 80% 90% 95% O 99% Question 9 (1 point) What is the correct conclusion? With 99% confidence, we estimate that the true population mean birth weights are between 3200 grams and 3261 grams. With 99% confidence, we estimate that the true population mean birth weights are between 3139 grams and 3200 grams. With 99% confidence, we estimate that the true population mean birth weights are between 3139 grams and 3261 grams.Question 10 (1 point) What is the sample mean? Question 11 (1 point) What is the sample size? Question 12 (1 point) What is the lower bound of the confidence interval? A/ Question 13 (1 point) What is the upper bound of the confidence interval? A Question 14 (1 point) What is the error bound margin