Asked by Faz
4. The average family income in the town of Seneville is $45 000, with a standard
deviation of $9000. Assuming that family income is normally distributed,
determine the income level below which 80% of the families in this town earn
deviation of $9000. Assuming that family income is normally distributed,
determine the income level below which 80% of the families in this town earn
Answers
Answered by
PsyDAG
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.8000) and its Z score. Insert Z score in the equation above and solve for score.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.8000) and its Z score. Insert Z score in the equation above and solve for score.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.