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ASK THE PROFESSOR FORUM

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 am in your Sta2021 class.I was doing the assignment from StatsProfessor on 5.2, where it said "Now you try it" , I am have issues with number 2. The question is P(1400 < X < 1700) , When I work it out, I get .3539 but on your answer sheet, it said the answer is .3529, I want to understand what I am doing wrong.

Posted to STATS 1 on Sunday, March 23, 2014   Replies: 1


Professor Mcguckian
03/23/2014
9:43 PM EST

Hi Melissa,

I have solved the problem in the video below.

Hopefully, it helps,

Professor McGuckian

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