Project #79714 - W3 Statistics Help- Problems

Instructions:  Follow the instructions below for each problem.

Problem 1: Standard Error of Mean

4.164

Suppose a random sample of n = 25 measurements is selected from a population with mean μ and standard deviation σ. For each of the following values of μ and σ, give the values of μxÌ„ and σxÌ„.

  1. μ = 10, σ = 3
  2. μ = 100, σ = 25
  3. μ = 20, σ = 40
  4. μ = 10, σ = 100

Calculate standard error of mean and make an inference about the accuracy of the mean by analyzing problem 4.164 listed above.

 

Problem 2: Associated Probability

Resources: Table IV in Appendix B of Statistics for Business and Economics. See attachment, pgs 9-10.

Demonstrate how to find the area under the normal curve.

Determine the associated probability with z-score = 1.96.

Open Table IV Under Curve areas and find .475.

Find the same information by working the problem backwards, starting with the alpha (significance level).

 

Subject Business
Due By (Pacific Time) 08/20/2015 06:00 pm
Report DMCA
TutorRating
pallavi

Chat Now!

out of 1971 reviews
More..
amosmm

Chat Now!

out of 766 reviews
More..
PhyzKyd

Chat Now!

out of 1164 reviews
More..
rajdeep77

Chat Now!

out of 721 reviews
More..
sctys

Chat Now!

out of 1600 reviews
More..
sharadgreen

Chat Now!

out of 770 reviews
More..
topnotcher

Chat Now!

out of 766 reviews
More..
XXXIAO

Chat Now!

out of 680 reviews
More..
All Rights Reserved. Copyright by AceMyHW.com - Copyright Policy