Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Please solve using R Problem 1. Data in the table below describe the hourly packing capacity of two machines that are being tested by a

Please solve using R

image text in transcribed
Problem 1. Data in the table below describe the hourly packing capacity of two machines that are being tested by a consumer supply company. Use this information to address the tasks below. Machine A 219 224 201 237 227 241 Machine B 184 198 210 228 221 182 1. Do these samples appear to be from normal distributions? Include evidence to support your conclusion. 2. Do the sample variances appear to be the same? Include evidence to support your conclusion. 3. Assuming the data are from normal distributions, test the null hypothesis that the means of the two samples are the same. Clearly state your conclusion and present the justification. 4. What is the 95% two-sided confidence interval of the difference in the mean values? 5. If the company wants to be able to detect a true difference in means = 20, what is the power of the statistical test used to answer question #3? 6. What sample size for each group would be required if the company wants the power of the test to be at least 0.80, and they want to detect a true difference in means = 20? 7. Because the sample size is relatively small, it would be a good idea to use a non-parametric method to compare the means. Select an appropriate test method and present evidence to support your conclusion

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access with AI-Powered Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Entrepreneurship

Authors: Andrew Zacharakis, William D Bygrave

5th Edition

1119563097, 9781119563099

Students also viewed these Mathematics questions