Question

In: Statistics and Probability

The average (mean) amount of time that a manager at the Mount Pleasant Department of Human...

The average (mean) amount of time that a manager at the Mount Pleasant Department of Human Services spends in the annual performance review with an employee is 27.2 minutes, with a standard deviation of 4.9 minutes (normal distribution). What percentage of the annual performance reviews in the department take between 22.3 and 32.1 minutes? Between 17.4 and 37 minutes? Between 12.5 and 41.9 minutes? Explain your answers.

Solutions

Expert Solution

Question is answered below.


Related Solutions

Is it pleasant or unpleasant to be human services worker and why whether it’s pleasant or...
Is it pleasant or unpleasant to be human services worker and why whether it’s pleasant or unpleasant
The manager wants to find out the average (population mean) time required to inflate a rubber...
The manager wants to find out the average (population mean) time required to inflate a rubber raft. Assuming that the manager knows the population standard deviation is 1.6 seconds. A random sample of 45 rafts is inflated, yielding an average inflation time of 7.6 seconds (sample mean). Using sample information to construct: (i) 95% confidence interval for the average inflation time of all rubber rafts. (ii) 99% confidence interval for the average inflation time of all rubber rafts.
Case 3: Pleasant Town Chili Sam Johnson, the kitchen manager for Pleasant Town Chili, is very...
Case 3: Pleasant Town Chili Sam Johnson, the kitchen manager for Pleasant Town Chili, is very concerned. The new owner is starting to use variance analysis to evaluate his performance, and the first report is looking dire. Sam is confused, since he thought the month went well. Cold weather had pushed sales higher than expected, and he adjusted the recipe to include a bit less meat to offset the rising cost of ground beef. Sam has asked you to help...
You are manager of the human resource department at a large company. You will meet a...
You are manager of the human resource department at a large company. You will meet a group of new employees. You want to develop a PowerPoint presentation that describes your company’s corporate ethics code on privacy that addresses both employee privacy and the privacy of customers and users of the corporate Web site. There are a vast number of examples you can access on existing corporate Web sites to use as models (note: using them as models to create your...
The study of Human capital amount to a waste of time and resources: Do you agree....
The study of Human capital amount to a waste of time and resources: Do you agree. Discuss and make your case well
The manager of a bank is concerned about the amount of time one of her tellers,...
The manager of a bank is concerned about the amount of time one of her tellers, Keon, needs in order to provide service to a single customer. The reason for her concern is that slow service times result in unacceptable waiting times for customers. The target time to provide service to a single customer is 4 minutes. The owner selects a random sample of 10 customer transactions with Keon and records the time it takes for him to complete each...
Question 2 [Budgeting] A) The human resources manager of your firm is worried about the amount...
Question 2 [Budgeting] A) The human resources manager of your firm is worried about the amount of time and resources consumed by the budget committee annually. She believes the whole process is a waste of time and that departments should be allowed to set their budgets. But you also reckon that a budget is based on the policies needed to fulfil the objectives of the entity i.e. it is a plan consisting of objectives and what to do to achieve...
A manager in the human resources department randomly selected five employees files and recorded the following...
A manager in the human resources department randomly selected five employees files and recorded the following data on X = number of weeks of paid vacation (annually) and Y = number of sick days claimed by the employee in the previous year. An analysis of the linear relationship between X and Y is desired. a) Find the value of b0 and b1 b) Find the regression equation c) Interpret the meaning of the Y intercept b0 d) Predict the number...
The amount of time a shopper spends in the supermarket is normally distributed with a mean...
The amount of time a shopper spends in the supermarket is normally distributed with a mean of 45 minutes with a standard deviation of 12 minutes. If 10 shoppers are selected, how many of them will spend less than 35 minutes? Round your answer to 3 decimal places. Do not include units in your answer. 4 points QUESTION 13 The amount of time a shopper spends in the supermarket is normally distributed with a mean of 45 minutes with a...
A researcher is interested in the mean amount of time it takes people to complete a...
A researcher is interested in the mean amount of time it takes people to complete a personality questionnaire. He selects 40 people at random and calculates the mean amount of time to be 20.4 min with a variance of 17.64 min2 . a) Define the parameter of interest. b) Define the random variable of interest. c) Name the distribution required to calculate confidence intervals. (Check the relevant criteria.) d) Construct a 98% confidence interval for the true mean amount of...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT