Mod. 20.2 Day 2 Lesson - C.I and Probability

What is the purpose of the Normal Cumulative Distribution Function (CDF) in statistics?

The weights of baby giraffes are known to have a mean of 125 pounds and a standard deviation of 15 pounds. If we obtained a random sample of 40 baby giraffes:

What is the probability that the sample mean is more than 119 pounds?

What is the standard error of the proportion for the company's claim that 90% of orders are shipped within 24 hours, given a sample size of 100 orders?

Which steps are involved in finding the probability that a sample mean falls within a certain range using the normalcdf function on a calculator?

How confident do you feel about calculating probabilities using the normal cumulative distribution function (CDF) and technology after today's lesson?