

Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Material Type: Assignment; Professor: Dunlap; Class: Elem Stat&Prob; Subject: Mathematics; University: The University of Tennessee-Martin; Term: Unknown 1989;
Typology: Assignments
1 / 2
This page cannot be seen from the preview
Don't miss anything!


Math 210 – Minitab Assignment # (Due in class the day of Exam 3) Directions: Print off graphs such as histograms, boxplots, etc. when asked to obtain them. Do NOT print off the data set! This is simply a waste of paper. Any output such as means or standard deviations that is obtained using Minitab should be printed. These should not simply be written by hand. For this kind of output, please label your answers so they are easy to find (i.e. 2a, 4b, etc). Just place the label next to the output by hand. Some things need to be done by hand such as counting the number of observations greater than 4. When you work with someone, do not turn in the assignment for both but instead, turn in only 1 assignment with both of your names on it. If you don't know how to do something, you must ask. It is not acceptable to simply say that you don't know. Points will be deducted. Do not clutter the Minitab output by placing your explanation on it. But, instead, place your explanation on a separate piece of paper. Do not use the calculator to solve the problem when the instructions clearly state to use Minitab. If you have more than 1 page, you will need to staple all pages together. Do not simply fold the corner over or use a paper clip. If this is not turned in during class time on the day it is due, it is considered late and will not be accepted except under extreme circumstances.
Step 1: Generate random data that is normally distributed with mean 58 and population standard deviation 3. Create 15 rows and 50 columns. If you are not sure how to do this, refer to the steps in Minitab Assignment #1. Step 2: Obtain a 90% confidence interval for the population mean for all 50 columns. Do this by going to {Stat / Basic Statistics / 1-Sample Z…} Select columns C1-C50 as your samples. Enter the population standard deviation. Select “Options” and you can choose the level of confidence. Click “OK” twice. Print the 50 confidence intervals that Minitab provides. Do not write these down by hand! Answer these questions: A. For the 50 confidence intervals that you printed out, place an arrow to the right of those that contain the true mean (not sample mean, population mean!). B. What percentage of the 50 confidence intervals contain the true mean? C. If you ran this simulation again, what percentage of the confidence intervals would you expect to contain the true mean? You may want to run this simulation a few times to answer this question.