Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Fifty students are enrolled in the Economics class. After the first examination, the random Sample of five papers had the following grades: 60, 75, 80, 70, and 90.

a. Compute the standard error.

b. Find out the 90% confidence interval for mean grade of all the students in class.

c. Find out the margin of error?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921018

Have any Question? 


Related Questions in Statistics and Probability

Discuss the radical reconstruction as a constitutional

Discuss the Radical Reconstruction as a Constitutional Revolution.

1 you wish to learn the proportion of mba students that are

1.) You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get? 2.) You wish to learn the average age of an MBA student within 2 years and wi ...

Measures of central tendency summative taskon a separate

Measures of Central Tendency Summative Task On a separate paper hand out the solution of the two parts of the investigation: Part One - Use the given data set to solve the following problems: 50, 55, 60, 60,70, 80 A. Fin ...

For planning purposes the landfill in mountainview

For planning purposes. the landfill in Mountainview estimates the weight of plastic to b e1.7 pounds per household each week. You have noticed a lit of plastics in the garbage in your neighborhood and want to test the cl ...

1 interpret in your own words the meaning of the computer

1. Interpret in your own words the meaning of the computer printout in Table 1. 2. Explain the meaning of the regression equation and the regression line as shown in Table 2. 3. What is meant by "partitioning the sum of ...

A sample of office assistants across the san francisco-bay

A sample of office assistants across the San Francisco-Bay Area was created. You want to build a model that will allow you to best predict a starting salary of potential new hires.  It was suggested that the data should ...

A teacher wants to estimate the average pa of all teachers

A teacher wants to estimate the average pa of all teachers in a district. She wants to be 95% sure her estimate is correct. The standard deviation is $1,000, how large must her sample be to be accurate within $200? Pleas ...

A special industrial battery must have a life of at least

A special industrial battery must have a life of at least 500 hours. A hypothesis test is to be conducted with a 0.04 level of significance. If the batteries from a particular production run have an actual mean use life ...

Assume that womens heights are normally distributed with a

Assume that women's heights are normally distributed with a mean given by mu equals 63.3 in, and a standard deviation given by sigma equals 3.1 in. Complete parts a and b. a. If 1 woman is randomly selected, find the pro ...

A women in the sample on average were as healthy as people

(a) Women in the sample, on average were as healthy as people nationally from both a physical and mental health perspective as indicated by the SD deviation of 10.0 and a mean of 50.0 based on the national average. (b) T ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen