Question

John has determined that the mean investment was $500 (in thousand) and standard deviation of $30...

John has determined that the mean investment was $500 (in thousand) and standard deviation of $30 (in thousands) for clients that took his advice when investing.

  1. What percent of companies have a mean investment greater than $505 (thousands)? Round to an integer number
  2. What is the investment range for the middle 80% of the investments? Round to the nearest tenth.
  3. What percent of companies have a mean investment smaller than $480 (thousands)? Round to the nearest percent.
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
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
Similar Questions
IQ is normally distributed with a mean of 100 and a standard deviation of 15. a)...
IQ is normally distributed with a mean of 100 and a standard deviation of 15. a) Suppose one individual is randomly chosen. Find the probability that this person has an IQ greater than 95. Write your answer in percent form. Round to the nearest tenth of a percent. P(IQ greater than 95) = b) Suppose one individual is randomly chosen. Find the probability that this person has an IQ less than 125. Write your answer in percent form. Round to...
IQ is normally distributed with a mean of 100 and a standard deviation of 15. a)...
IQ is normally distributed with a mean of 100 and a standard deviation of 15. a) Suppose one individual is randomly chosen. Find the probability that this person has an IQ greater than 95. Write your answer in percent form. Round to the nearest tenth of a percent. PP(IQ greater than 95) = % b) Suppose one individual is randomly chosen. Find the probability that this person has an IQ less than 125. Write your answer in percent form. Round...
1. A random sample of 30 has a mean of 95 and a population standard deviation...
1. A random sample of 30 has a mean of 95 and a population standard deviation of 7. Find a 95% confidence interval. What is the smaller value? [Round to the nearest thousandths] 2. What is the larger value? [Round to the nearest thousandths]
1) A company has two investment possibilities, with the following cash inflows: Investment Year 1 Year...
1) A company has two investment possibilities, with the following cash inflows: Investment Year 1 Year 2 Year 3 A $1,400 1,600 1,800 B $1,300 1,300 1,300 If the firm can earn 7 percent in other investments, what is the present value of investments A and B? Use Appendix B and Appendix D to answer the question. Round your answers to the nearest dollar. PV(Investment A): $ PV(Investment B): $ If each investment costs $4,000, is the present value of...
Data are drawn from a bell-shaped distribution with a mean of 30 and a standard deviation...
Data are drawn from a bell-shaped distribution with a mean of 30 and a standard deviation of 3. a. Approximately what percentage of the observations fall between 27 and 33? (Round your answer to the nearest whole percent.) b. Approximately what percentage of the observations fall between 24 and 36? (Round your answer to the nearest whole percent.) c. Approximately what percentage of the observations are less than 24? (Round your answer to 1 decimal place.)
GlenBluss Community College has a population mean GPA is 2.82 with population standard deviation of 1.07...
GlenBluss Community College has a population mean GPA is 2.82 with population standard deviation of 1.07 for all students who have ever attended the college. Find the probability a student at random will have a GPA over 3.24. Round to 4 decimal places. If 5 students are chosen at random, what is the probability their mean GPA will be more than 3.24? % Round to the nearest whole percent.
The population has mean μ=29 and standard deviation σ=9. This distribution is shown with the black...
The population has mean μ=29 and standard deviation σ=9. This distribution is shown with the black dotted line. We are asked for the mean and standard deviation of the sampling distribution for a sample of size 34. The Central Limit Theorem states that the sample mean of a sample of size n is normally distributed with mean μx¯=μ and σx¯=σn√. In our case, we have μ=29, σ=9, and n=34. So, μx¯=29 and σx¯=934‾‾‾√=1.5 This distribution is shown with the red...
1.) A distribution of values is normal with a mean of 210 and a standard deviation...
1.) A distribution of values is normal with a mean of 210 and a standard deviation of 3. Find the interval containing the middle-most 78% of scores: Enter your answer accurate to 1 decimal place using interval notation. Example: (2.1,5.6) Hint: To work this out, 1) sketch the distribution, 2) shade the middle 78% of the data, 3) label unkown data values on the horizontal axis just below the upper and lower ends of the shaded region, 4) calculate the...
Suppose the average commute time of your employees is unknown. The standard deviation of their commute...
Suppose the average commute time of your employees is unknown. The standard deviation of their commute time is estimated as 36.9 minutes. How many employees must be included in a sample to create a 95 percent confidence interval for the average commute time with a confidence interval width of no more than 19 minutes? Note that the correct answer will be evaluated based on the z-values in the summary table in the Teaching Materials section. Remember to round your answer...
Q1-. A normal distribution has a mean of 15 and a standard deviation of 2. Find...
Q1-. A normal distribution has a mean of 15 and a standard deviation of 2. Find the value that corresponds to the 75th percentile. Round your answer to two decimal places. Q2-.Tyrell's SAT math score was in the 64th percentile. If all SAT math scores are normally distributed with a mean of 500 and a standard deviation of 100, what is Tyrell's math score? Round your answer to the nearest whole number. Q3-.Find the z-score that cuts off an area...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT