ZuoTi.Pro
Question

Suppose the College frequency distribution of Salary represents a normal distribution, where the mean of professors salaries is $80,000, and the standard deviation is $10,000, answer the following questions: iow of salariges within the range of the in us and minus thf salaries What is the percent of salaries within the range of the mean plus and minus 2 standard deviation What is the percent of salaries within the range of the mean plus and minus 3 standard deviation ·95.44% and 99.74% 68.44% and 99.74% 95% and 99% 90% and 95%

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Suppose the college frequency distribution of salary represents a normal distribution, where the mean of professors salaries is $80000 and standard deviation is $10000 The range of mean plus and minus 2 standard deviation is, μ 2σ-80000 2 * 10000 60000.100000) ¡The range of mean plus and minus 3 standard deviation is. μ ± 3σ 80000 ± 3 * 10000 (5000,110000) Using the empirical rule,34% 34% 2.35% 2.35% 0.15% 13.5% 13.5% 0.15% From the plot, nearly 95.44% of the salaries lie in the interval (60000.100000) Nearly 99.74% of the salaries lie in the interval (50000110000) Answer: Option (1)

0 0
Add a comment
Know the answer?
Add Answer to:
Suppose the College frequency distribution of Salary represents a normal distribution, where the mean of professors'...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • In a normal distribution, if x bar represents the mean and o represents the standard deviation...

    In a normal distribution, if x bar represents the mean and o represents the standard deviation what percent of information falls between x bar and x bar + o? a. 34 b. 50 c. 68 d. 95

  • The mean starting salary for college graduates in 2016 was $36,000. Assume that the distribution of...

    The mean starting salary for college graduates in 2016 was $36,000. Assume that the distribution of starting salaries follows the normal distribution with a standard deviation of $3,000. 1.What is the probability that a graduate will have a starting salary more than $43,500? 2. What is the probability that a graduate will have a starting salary between $42,000 and $43,500? 3. What is the probability that a graduate will have a starting salary between $30,000 and $45,000? 4. What starting...

  • (4-5) The chairman of the statistics department in a certain college believes that 70% of the...

    (4-5) The chairman of the statistics department in a certain college believes that 70% of the department's graduate assistantships are given to international students. A random sample of 50 graduate assistants is taken. 4. Find the expected value and the standard error of the sampling distribution of  . 5. What is the probability that the sample proportion  is between 0.65 and 0.73? (6-9) Suppose that the starting salaries of female math professors have a positively skewed distribution with...

  • For the normal distribution, the mean plus and minus one standard deviation will include about what...

    For the normal distribution, the mean plus and minus one standard deviation will include about what percent of the observations? a. 34% b. 68% c. 48% d. 95%

  • For random samples of size n = 16 selected from a normal distribution with a mean...

    For random samples of size n = 16 selected from a normal distribution with a mean of 75 and a standard deviation of 20, find each of the following: a. The range of sample means that defines the middle 95% of the distribution of sample means b. The range of sample means that defines the middle 99% of the distribution of sample means

  • Problem 2 Salaries for new assistant professors at State College are normally distributed with a mean...

    Problem 2 Salaries for new assistant professors at State College are normally distributed with a mean of $80000 and a standard deviation of $7000 We randomly survey 20 teachers from that district, let X be the salary of a randomly selected teacher at State, and let X be the average salary of 20 randomly selected teachers b. (3%) 8 ~ Ipick one, B ( c. (396) Find the probability that an individual teacher earns more than $65,000. P(X> 65000) d....

  • Problem 2 Salaries for new assistant professors at State College are normally distributed with a mean...

    Problem 2 Salaries for new assistant professors at State College are normally distributed with a mean of $80000 and a standard deviation of $7000 We randomly survey 20 teachers from that district, let X be the salary of a randomly selected teacher at State, and let X be the average salary of 20 randomly selected teachers Expand All c. d3%) Find the probablity that ㄺ individual teacher earns more than $65,000. X> 65000) d. (3) Fied the probablity that the...

  • A survey reported that the mean starting salary for college graduates after a three-year program was...

    A survey reported that the mean starting salary for college graduates after a three-year program was $33,160.Assume that the distribution of starting salaries follows the normal distribution with a standard deviation of $4090. What percentage of the graduates have starting salaries: (Round z-score computation to 2 decimal places and the final answers to 4 decimal places.)   a. Between $32,500 and $38,600? Probability            b. More than $42,900? Probability            c. Between $38,600 and $42,900? Probability           

  • Problem 2 Salaries for new assistant professors at State College are normally distributed with a mean...

    Problem 2 Salaries for new assistant professors at State College are normally distributed with a mean of $80000 and a standard deviation of $7000 We randomly survey 20 teachers from that district, let X be the salary of a randomly selected teacher at State, and let X be the average salary of 20 randomly selected teachers X- a. (3%) b. (3%) c. (396) (pick one) B X ~ tpick one, B Frd the probability that an individual teacher earns more...

  • Problem 2 Salaries for new assistant professors at State College are normally distributed with a mean...

    Problem 2 Salaries for new assistant professors at State College are normally distributed with a mean of $50000 and a standard deviation of $5000. We randomly survey 10 teachers from that district, let X be the salary of a randomly selected teacher at State, and let X be the average salary of 10 randomly selected teachers a. (3%) x ~ Cpick one) : b. (3%) 8 ~ I(pick one): (3%) Find the probability that an individual teacher earns more than...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT