Quizch19_key
... 38. In which of the following situations does the rule for sample means not apply? a. A pollster takes a random sample of 1,000 Americans and asks them to give their opinion of the President on a scale from 1 (completely disapprove) to 100 (completely approve). He is interested in the average ratin ...
... 38. In which of the following situations does the rule for sample means not apply? a. A pollster takes a random sample of 1,000 Americans and asks them to give their opinion of the President on a scale from 1 (completely disapprove) to 100 (completely approve). He is interested in the average ratin ...
Chapter 5 Measures of Variability
... Importance of Variance & Standard Deviation in Inferential Stats Var & st dev estimate the spread of the scores If scores are closely packed to the mean, the var/st. dev is small If scores are very far away from the mean, the var/st dev is large In general, var & st dev can be conceived of as “erro ...
... Importance of Variance & Standard Deviation in Inferential Stats Var & st dev estimate the spread of the scores If scores are closely packed to the mean, the var/st. dev is small If scores are very far away from the mean, the var/st dev is large In general, var & st dev can be conceived of as “erro ...