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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

Hi Professor,
On ch8-#46: You have a test stat of 1.67, and I'm getting a test stat of 1.4. I'm using the following data: n=100, p^ =0.15, pnot = 0.10, q not=0.85. I've entered the data onto calculator several ways, and still get 1.4 Test-stat.... Let me know what I'm doing wrong please. thanks

Posted to STATS 2 on Tuesday, September 23, 2014   Replies: 1


Professor Mcguckian
09/23/2014
1:30 PM EST

Hi Gisselle,

The error you are making is in your q0. Your q0 should be equal to 1 - p0 = 1 - 0.10 = 0.90.

That should correct the problem,

Professor McGuckian

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