A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 335 babies were born, and 268 of them were girls. Use the sample data to construct a 9% confidence interval estimate of the percentage of girls born. Based on the result, does the method appear to be effective? ..... < p< (Round to three decimal places as needed.)

What is the easiest way to learn to remember the definitions  Statistics Sample population Data perimeter

A student has an average of 81 on four equally weighted tests she has taken in her statistics class. What grade must she receive on her fifth test if she needs an average score of 83? Answer is 91? Can you help me to explain to me step by step?

For some data, we know the range R of the data is 12 and its median is 6. Find Estimated Lowest Number, and Estimated Highest Number for this data. Give you answers in the same order asked.