Solution Found!
Teachers’ SalariesThe average annual salary for all U.S.
Chapter 6, Problem 2E(choose chapter or problem)
Problem 2E
Teachers’ SalariesThe average annual salary for all U.S. teachers is $47,750. Assume that the distribution is normal and the standard deviation is $5680. Find the probability that a randomly selected teacher earns
a. Between $35,000 and $45,000 a year
b. More than $40,000 a year
c. If you were applying for a teaching position and were offered $31,000 a year, how would you feel (based on this information)?
Questions & Answers
QUESTION:
Problem 2E
Teachers’ SalariesThe average annual salary for all U.S. teachers is $47,750. Assume that the distribution is normal and the standard deviation is $5680. Find the probability that a randomly selected teacher earns
a. Between $35,000 and $45,000 a year
b. More than $40,000 a year
c. If you were applying for a teaching position and were offered $31,000 a year, how would you feel (based on this information)?
ANSWER:
Solution
Step 1 of 3
The given annual average salary for US teachers is $47,750
And the standard deviation is $5,680
a) We have to find the probability of a randomly selected teacher earns between $35,000 and $45,000 a year
Now
=
=
=
=
Hence the probability of a randomly selected teacher earns between $35,000 and $45,000 a year is 0.30306