Estimating expected return and standard deviation

Assignment Help Basic Statistics
Reference no: EM1393114

An analyst thinks that the economic conditions during the next year will either be Strong, Normal or Weak and she thinks that the Simpson Company's returns will have the following probability distribution. What's the standard deviation of Simpson's returns as estimated by this analyst?


  • STRONG 30% 24%
  • NORMAL 40% 15%
  • WEAK 30% -10%

Reference no: EM1393114

Previous Q& A

  Determine the energy lost to friction throughout that time

A spool of thin wire (with inner radius r = 0.50 m, outer radius R = 0.65 m, and moment of inertia I_cm = 1.1323 kg*m2) pivots on a shaft.

  Evidence of an improvement on the final exam

A random sample of 7 students selected from a large class revealed the following scores: midterm 70, 62, 57, 68, 89, 63, 82 and on the final 80, 79, 87, 88, 85, 79, 91. Is there evidence of an improvement on the final?

  What are the speed and the direction of resulting ball

A 14 g ball of clay travelling east at 3.0 m/s collides with a 30 g ball of clay travelling north at 2.00m/s. What are the speed and the direction of resulting 44 g ball of clay.

  Determining mean and standard deviation

A manufacturing process produces items whose weights are basically distributed. It is known that 22.57% of all the items produced, weigh between 100 grams up to the mean and 49.18% weigh from the mean up to 190 grams.

  Explain the problems of homelessness

Explain the problems of homelessness based upon the developmental, situational, and human needs perspectives

  What is the magnitude of the impulse delivered to ball

A player bounces a 0.47 kg soccer ball off her head, changing the velocity of the ball from i = (9.2 m/s) + (-2.7 m/s) to f = (6.1 m/s) + (5.5 m/s). The ball is in contact with the player's head for 6.70ms.

  Reasons for studying statistics

Critically discuss the reasons for studying statistics? Choose five random numbers between 70-100. Calculate the mean, and midrange of these numbers.

  What will be the speed of the last car as it passes worker

A 100-m-long train accelerates uniformly from rest. If the front of the train passes a railway worker 166-m down the track at a speed of 21 m/s, what will be the speed of the last car as it passes the worker.

  Explain u-shaped curve of marital satisfaction

Sociologists sometimes talk about U-shaped curve of marital satisfaction. Assume, married couples are happiest before they have children and after their children have grown up and left home. Do you agree with this result.

  Serve under a performance management system

What purpose do they serve under a performance management system? Performance appraisals are they necessary or not?


Write a Review


Similar Q& A

  Mean and standard deviation-column of differences

Form the column of differences and find the mean and standard deviation of this column of numbers.

  Their total cholesterol levels before also after the diet

Utilizing the 5% level of significance as there was a significant change in cholesterol level. Their total cholesterol levels before also after the diet.

  Bound on the error of estimation

The sample mean of the accounts is found to be y-bar = $94.22, and the sample variance is equal to $455.21. Estimate mu and place a bound on the error of estimation.

  Determining difference in mean waiting time

Suppose the population standard deviations are not the same. At.05 significance level, is there a difference in mean waiting time?

  Normal distribution for eye surgical procedure

A health care analyst would like to know that if the duration of a given eye surgical procedure has a normal distribution with a mean of 240 minutes and a standard deviation of 40 minutes

  Computing the coefficient of determination

Compute the coefficient of determination for bone loss and women's age and describe what this statistic means.

  Trailers allocated by the deliveries

A haulage contractor has two loads to deliver to separate customers. He has 4 trailers of which 2 are new. If the trailers are randomly chosen for any particular delivery: (a) In how many ways can the trailers be allocated the deliveries?

  Difference in the mean number and p-value

At the .01 significance level, is there a difference in the mean number of times men and Women order take-out dinners in a month? What is the  p -value?

  Design and model resulting from analysis

An experiment is designed using three levels of ground clutter and two filter types. The experiment is performed by randomly selecting a treatment combination

  Explaining conclusion on population standard deviation

It is believed that population standard deviation is 15 days. If test is conducted using a 0.05 level of significance, what conclusion must be reached?

  Constructing confidence interval estimation

The data was used to make inferences regarding the other students taking the course. Construct a 95% confidence interval estimate. Explain your findings so that your non-quantitative partner will understand them. Their data is below:

  Observations producing a sample proportion

A random sample of 400 observations produced a sample proportion of 0.32. What is the standard error to construct a 99.5% confidence interval.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd