Class Notes (837,610)
York University (35,409)
MATH 2565 (19)
Lecture

# PPS8.doc

2 Pages
145 Views

School
Department
Mathematics and Statistics
Course
MATH 2565
Professor
Jagmohan Chawla
Semester
Winter

Description
PPS8 Problem 23.3: Describe how the shape, centre, and spread of t- models change as the number of degrees of freedom increases. Problem 23.7: After surveying students at Darmouth College, a campus organization calculated that a 95% confidence interval for the mean cost of food for one term (of three in the Dartmouth trimester calendar) is (\$1102, \$1290). Now the organization is trying to write its report and is considering the following interpretations. a) 95% of all students paid between \$1102 and \$ 1290 for food. b) 95% of the sampled students paid between \$1102 and \$ 1290. c) We are 95% sure that students in this sample averaged between \$1102 and \$ 1290 for food. d) 95% of all samples of students have average food costs between \$1102 and \$1290. e) We’re 95% sure that the average amount all students pay is between \$1102 and \$1290. Problem 23.9 : A medical researcher measured the pulse rates (beats per minute) of a sample of randomly selected adults and found the following Students’s t-based confidence interval: With 95% Confidence 70.887604
More Less

Related notes for MATH 2565
Me

OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Join to view

OR

By registering, I agree to the Terms and Privacy Policies
Just a few more details

So we can recommend you notes for your school.