Enjoy learning Statistics Online! Please be sure to share and subscribe to our YouTube channel.


Course Documents

Chapter 1 - Intro

Chapter 2 - Methods for Describing Sets of Data

Chapter 3 - Probability

Chapter 4 - Discrete Random Variables

Chapter 5 - Normal Random Variables

Chapter 6 - Sampling Distributions

Chapter 7 - Confidence Intervals

Chapter 8 - Tests of Hypothesis: One Sample

Chapter 9 - Confidence Intervals and Hypothesis Tests: Two Samples

Sample Exam I: Chapters 1 & 2

Sample Exam II: Chapters 3 & 4

Sample Exam III: Chapters 5 & 6

Sample Exam IV: Chapters 7 & 8

Ask the Professor Forum

I was working on the sample problems for 7.6 and got them right, for the most part, but I rounded to the nearest percentage. Will you mark it wrong if we do this on the exams?

(i.e. For my problem 2, my answer was.... We are 90% confident that the true rate of new marriages ending in divorce is between 51% and 55%.)

Posted to STATS 2 on Wednesday, June 25, 2014   Replies: 2

Professor Mcguckian
12:15 AM EST

Hi Alexa,

The exams are going to be multiple choice this summer, so you will simply round your answers to the same decimal place that all of the answer choices are rounded to. You will not have the same answer rounded to different places on the exam.

Professor McGuckian

10:01 AM EST
Ok thank you!

Post a reply / comment below or click here to submit a new question to the forum.