Imagine you're trying to determine the average weight of newborns whose mother ate only vegan food during pregnancy.Based on a sampleof60newborns,witha population standard deviationof0.3pounds,youfind a sample average of7.2pounds.

• What's the confidence interval at 95%?What is it at 99.9%?
• What would the confidence intervals (for 95% and 99.9%) be if the sample average was based on 600 newborns instead of 60?

Include the upper and lower bounds foreach of the four intervals andbe sure to include what you put into Excel to determine your answer.Round your answers to three decimal places.