FREE Trial

A random sample of 90 observations produced a mean = 25.9 and a standard deviation s = 2.7. a.

Question:

A random sample of 90 observations produced a mean  = 25.9 and a standard deviation s = 2.7.

a. Find a 95% confidence interval for the population mean µ.

b. Find a 90% confidence interval for µ.

c. Find a 99% confidence interval for µ.

This problem has been solved!


Do you need an answer to a question different from the above? Ask your question!

Step by Step Answer:

Answer rating: 66% (15 reviews)

a For confidence coefficient 95 05 and 2 05 2 025 From Table IV Appendix A z 025 1 96 The confid…View the full answer


answer-question
Answered By
tutor-profile-image
Shameen Tahir
The following are details of my Areas of Effectiveness. The following are details of my Areas of Effectiveness English Language Proficiency, Organization Behavior , consumer Behavior and Marketing, Communication, Applied Statistics, Research Methods , Cognitive & Affective Processes, Cognitive & Affective Processes, Data Analysis in Research, Human Resources Management ,Research Project, Social Psychology, Personality Psychology, Introduction to Applied Areas of Psychology, Behavioral Neurosdence , Historical and Contemporary Issues in Psychology, Measurement in Psychology, experimental Psychology, Business Ethics Business Ethics An introduction to business studies Organization & Management Legal Environment of Business Information Systems in Organizations Operations Management Global Business Policies Industrial Organization Business Strategy Information Management and Technology Company Structure and Organizational Management Accounting & Auditing Financial Accounting Managerial Accounting Accounting for strategy implementation Financial accounting Introduction to bookkeeping and accounting Marketing Marketing Management Professional Development Strategies Business Communications Business planning Commerce & Technology Human resource management General Management Conflict management Leadership Organizational Leadership Supply Chain Management Law Corporate Strategy Creative Writing Analytical Reading & Writing Other Expertise Risk Management Entrepreneurship Management science Organizational behavior Project management Financial Analysis, Research & Companies Valuation And any kind of Excel Queries.
4.70+ 16+ Reviews 34+ Question Solved
Related Book For  answer-question
Statistics

Statistics

ISBN: 9780321755933

12th Edition

Authors: James T. McClave, Terry T Sincich

See More Books
View Solution
Create a free account to access the answer
Cannot find your solution?
Post a FREE question now and get an answer within minutes. * Average response time.
Question Posted: May 20, 2015 05:37:00
See More Questions

Students also viewed these Statistics questions

Q:
Find the 95 percent confidence interval for the population variance from these samples. a. n = 15 commuters, s = 10 miles driven b. n = 18 students, s = 12 study hours
A:
a b n 1 s X......
Q:
A random sample of 90 standard metropolitan statistical areas (SMSAs) was studied to obtain information on murder rates. The murder rates (number of murders per 100,000 people) were recorded, and...
A:
A relative frequency histogram......
Q:
Find and interpret a 95 percent confidence interval for the slope B] of the simple linear regression model describing the sales volume data in Exercise 13.17 (page 533).
A:
Find sbl from Minitab The regression equa......
Q:
Calculate the covariance of returns on the foreign index and the returns on the domestic index. An analyst produces the following joint probability function for a foreign index (FI) and a domestic...
A:
The covariance of returns on the foreign index and the returns on the domestic index is calculated u......
Q:
Alternative ways of laundering 100 shirts are in the table. a. Which methods are technologically efficient? b. Which method is economically efficient if the hourly wage rate and the implicit rental...
A:
a b All the methods are technologically efficient 1 Wa......
Q:
How can the extent to which economies or diseconomies of scale are experienced help us to predict the size and number of real-world firms in an industry?
A:
If economies of scale are quite extensive the curve s......
Q:
Use the first thirteen rules of inference to derive the conclusions of the following symbolized arguments: 1. ~(F.A) 2. ~(LV~A) 3. DD (FvL) /~D
A:
To derive the conclusion D from the given premises using the first thirtee......
Q:
As you learned earlier in this chapter, R/Way is a small but rapidly growing trucking company headquartered in Cleveland, Ohio. R/Ways information system currently consists of a file server and three...
A:
1 It is depending on how address differences between a firm that offers services rather than products It certainly is possible to apply supply chain m......
Q:
Matt Simpson is the supplier/retailer of home media and entertainment systems. Matt not only sells home media and entertainment systems but is also available to install the systems in customers'...
A:
To calculate the assessable income for Matt for the 2021 22 and 2022 23 income......
Q:
Show the effects of each of the following events on the market in the petroleum engineering industry: a. More people switch from gasoline-powered cars to electric cars. b. Fewer college students...
A:
when more people switch from gasoline powered cars to electric powered ca......
Q:
What is the confidence level of each of the following confidence intervals for ? a. 1.96(/n) b. 1.96(/n) c. 1.96(/n) d. 1.96(/n) e. 1.96(/n)
A:
a z 2 1 96 using Table IV Appendix A P 0 z 1 96 4750 Thus 2 5000......
Q:
The mean and standard deviation of a random sample of n measurements are equal to 33.9 and 3.3, respectively. a. Find a 95% confidence interval for if n = 100. b. Find a 95% confidence interval for ...
A:
a For confidence coefficient 95 05 and 2 05 2 025 From Table IV Appendix A z 025......
Q:
A box containing food supplies for a refugee camp was dropped from a helicopter flying horizontally at a constant elevation of 500. m. If the box hit the ground at a distance of 150. m horizontally...
A:
THINK Assuming the box has no parachute at the time of drop it will have the same horizontal v......
Q:
As The Oculists Case indicates, the medical profession has faced a large number of lawsuits for centuries. In Texas, a law provides that, so long as a doctor was not reckless and did not...
A:
The question of whether a legal rule like the one in Texas which limits recovery for pain and suffering in medical malpractice cases is more sensible......
Q:
Match each of the key terms with the definition that best fits it. ____________ The way a system actually works. Here are the key terms from the chapter. The page where each term is first explained...
A:
To match each key term with the definition that best fits it let s go through each term and its corr......
Q:
Match each of the key terms listed with the definition that best fits it. ___________ That part of a decision table that specifies which actions are to be followed for a given set of conditions. Here...
A:
The term that matches the definition That part of a dec......
Q:
Based on a random sample of 40 observations from any continuous population, construct a confidence interval formula for the population median that has confidence level (at least) 95%.
A:
To construct a confidence interval for the population median with a confidence level of at least 95......
Q:
Match each of the key terms with the definition that best fits it. ____________ The third phase of the project management process in which the plans created in the prior phases (project initiation...
A:
The term that matches the definition The third phase of the project......
Q:
Write a method called reverse that reverses the order of the elements in the array list. For example, if a variable called list stores [11, 7, 3, 42, 0, 14, 56], the call of list.reverse(); should...
A:
public......
Q:
For the data in Exercise 17-19, use the FIFO method to summarize total costs to account for, and assign these costs to units completed and transferred out, and to units in ending work in process....
A:
Based on the data provided in the image we have the following information Units started and complete......
Q:
Consider the electric power data of Exercise 12.9. Test H0: 1 = 02 = 0 making use of R (1, 23, 4). Give a P-value, and draw conclusions.
A:
The hypotheses are Ho 3 3 0 H At least one of the 3 s is......
Q:
Consider the data for Exercise 12.36. Compute the followingsComment. R(3:|30, 82, B3), R(32|30, 31, Ba), R(31|30), R(32|30, B1), R(B3|30, 31, 32).
A:
Using computer software we obtain the following R 31 B......
Q:
Consider the data of Exercise 11.63. Fit a regression model using weight and drive ratio as explanatory variables. Compare this model with the SLR (simple linear regression) model using weight alone....
A:
The following is the summary R Adi adj 0 8104 8 R The model using weight alo......
Parallel Numerical Algorithms 1st Edition - ISBN: 9401062773 - Free Book