![insomniacnana2](/avatars/41154.jpg)
insomniacnana2
21.10.2020 •
Mathematics
Suppose that we randomly select 100 U.S. adults who are smokers and find that 25% of this sample started smoking before the age of 16. In this random sample, the sample proportion (25%) differs from the estimated population proportion (30%) by 5%. In other words, there is a 5% error in the sample proportion; this sample under-estimates the population proportion by 5%.
Is this much error surprising? To answer this question, find the probability that a sample proportion will over- or under-estimate the parameter by more than 5%.
Show your work by checking normality conditions, calculating a z-score, explaining how the area under the normal curve is used to answer the question, and stating a conclusion in the context of this problem.
Solved
Show answers
More tips
- S Style and Beauty Tricks and Tips: How to Get Rid of Freckles...
- H Health and Medicine What is Autism? Understanding the Basics of This Neurodevelopmental Disorder...
- F Food and Cooking The Most Delicious and Simple Fish in Batter Recipe...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- F Food and Cooking Which Calamari Salad is the Most Delicious?...
- H Health and Medicine Mercury Thermometer Danger: What to do when a thermometer breaks?...
- S Style and Beauty How to braid friendship bracelets?...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- C Computers and Internet How to Learn to Type Fast?...
- H Health and Medicine Angina: Causes, Symptoms, and Treatment...
Answers on questions: Mathematics
- M Mathematics Hii! Could you help me? What are the ways or procedures to find LCM or LCD? Thanks in Advance! :))...
- M Mathematics Need help if someone can show how this is done plz...
- M Mathematics Terrance trains at a rate of 6 miles every half hour and jesse trains at a rate of 2 miles every 15 minutes...
- C Computers and Technology Follow my TikTok ashlynnn.9292 !!...
- H Health After a building explodes EMS delivers 22 critically injured patients to a hospital emergency room. Which type of leader do you think would be most effective in directing the group...
- M Mathematics Consider the diagram. Lines AC and RS are coplanar. parallel. perpendicular. skew....
- M Mathematics Help im horrable at math...
Ответ: