10.1_review_a___c (2).doc - Name: 10.1A and C Review AP...

This preview shows page 1 - 2 out of 2 pages.

Name:AP Statistics10.1A and C ReviewSuppose you administer a certain aptitude test to a random sample of 9 students in your school, and that theaverage score is 105.We want to determine the mean µ of the population of all students in the school.Assumea standard deviation of  = 15 for the test.1.What is the upper critical value for a 98% confidence interval?(Show the key numbers in the sketch of thedistribution.)-3.03.0.50-.502.Explain the meaning of “98% confident.”3.What is the standard deviation of the mean,x4.Calculate a 98% confidence interval for the mean score µ for the whole school. Follow the InferenceToolbox.5.What sample size would be needed to have a margin of error at most 4 points??Chapter 10
We have textbook solutions for you!
/Understandable-Statistics-Concepts-and-Methods-12th-Edition-9781337119917-646/
The document you are viewing contains questions related to this textbook.
Chapter 7 / Exercise 10
Understandable Statistics: Concepts and Methods
Brase
Expert Verified
From a population with standard deviation 25, a sample of size 100 is drawn.The mean of the sample is 235.1.Findz* for a 90% confidence interval for the true mean of the
End of preview. Want to read all 2 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Fall
Professor
samford
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
Understandable Statistics: Concepts and Methods
The document you are viewing contains questions related to this textbook.
Chapter 7 / Exercise 10
Understandable Statistics: Concepts and Methods
Brase
Expert Verified

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture