Why is sampling often preferable to conducting a census for the purpose of obtaining information about a population?

A coach is interested in how many slam dunks the average college freshman at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concluded that college seniors can do an average of 10 slam dunks in a row without missing. what is the sample? what is the population?

1. If you wanted to conduct a survey to determine the mean shoe size of American adults, how could you collect the data to ensure that you had a simple random sample?

You may need to use the appropriate appendix table or technology to answer this question. In the past, 19% of all homes with a stay-at-home parent, the father is the stay-at-home parent. An independent research firm has been charged with conducting a sample survey to obtain more current information. (a) What sample size is needed if the research firm's goal is to estimate the current proportion of homes with a stay-at-home parent in which the father is the stay-at-home parent with a margin of error of 0.03? Use a 95% confidence level. (Round your answer up to the nearest whole number.) (b) Repeat part (a) using a 99% confidence level. (Round your answer up to the nearest whole number.) Need Help? Read It option esc ! 1 T Q A Z 96 2 W S X 88 command Watch It O #3 E Master It a D C $ 4 R F ~ ♫ % 5 V T G m MA 6 MacBook Pro B Y H & 7 U N D W * 8 J P 1 T M ( K 1 & O **** ) O 1 H L cricut P V command T { x + 11 ? option } រ dele