I want to know if there's any truth to the old saying "Ignorance is Bliss" among Georgia. I talk to 50 people in my three college classes, 25 who watch the news every day and 25 who don't. I ask them to rate their average happiness on a scale of 1 to 10, 1 being "I am miserable", 10 being "life is great!" The average score of the daily news addicts is 3.5 while the average of those who could care less is 5.5. What is the sample in this study? 1. 50 college students 2. Level of happiness What is the dependent variable in this study? 3. People in Georgia

A recent study examined the drinking behaviors of undergraduate college students (male and female freshmen). Each participant was asked how many alcoholic beverages they consumed during the past 7 days. The researchers wish to determine if there is a difference in the drinking habits of males and females in this age group. A recent study examined the drinking behaviors of undergraduate college students (male and female freshmen). Each participant was asked how many alcoholic beverages they consumed during the past 7 days. The researchers wish to determine if there is a difference in the drinking habits of male and females in this age group.  Female Male 9 13 5 9 5 7 9 11 8 10 3 5 5 6 2 10 1 16 7 12 Which type of test will you run? What is the independent variable? What is the dependent variable?

You want to study whether music affects people’s ability to learn.  You get a sample of college students.  First, you have them study a list of words with soft classical music playing, then you test how many words they correctly remember.  Second, you have them study a list of words with loud heavy metal playing, then you test how many words they correctly remember.  You want to compare their learning/memory with the classical music to their learning/memory with the loud heavy metal music.  What kind of hypothesis test should you do? Independent-Samples t-test Related-Samples t-test One-Sample t-test One-Sample z-test

The mean of 200 observations was 80, later on, it was found that two observations were misread as 92 and 8 instead of 192 and 88. Find the correct mean.