Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. a machine produces pipes used in airplanes. the av

A machine produces pipes used in airplanes. The average length of the pipe is 16 inches....

60.1K

Verified Solution

Question

Basic Math

A machine produces pipes used inairplanes. The average length of the pipe is 16 inches. Theacceptable variance for the length is 0.3 inches. A sample of17 pipes was taken. The average length in thesample was 15.95 inches with a variance of 0.4 inches.

a.

Construct a 95% confidence interval for the populationvariance.

b.

State the null and alternative hypotheses to be tested.

c.

Compute the test statistic.

d.

The null hypothesis is to be tested at the 5% level ofsignificance. State the decision rule for the test using thecritical value approach.

e.

What do you conclude about the population variance?

Answer & Explanation Solved by verified expert
4.0 Ratings (510 Votes)
    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Geometry
1.2K views

The area of a circle is 25mcm. What is the circumference of the circle? Write...

Statistics
1.2K views

The Culminating Project Offering career academies in high schools has become more popular during the past 30...

Operations Management
1.2K views

How could the firm Coles Supermarkets increase their overall environmental and social sustainability during this current COVID-19...

Biology
1.2K views

An acute viral disease infects a population of chipmunks, and only those homozygous for allele b...

Geometry
1.2K views

1 point points A 3 4 and B 5 0 form a line segment Find...

Geometry
1.2K views

Nguyen loaded 12 trucks in 1 hour. Find his loading speed in trucks per hour....

Algebra
1.2K views

Write the following in interval notation: 7>x or 19 ? x

Accounting
1.2K views

Kramer Candy Corporation desires a 11% return on investment (ROI) on all operations. The following...

Accounting
1.2K views

How effective are financial ratios

Accounting
1.2K views

Which factors strengthens the case for policy activism?

Accounting
1.2K views

10 parts question. please solve ALL parts thank you ...

Accounting
1.2K views

Assuming yourself as a management consultant, explain as to why an entrepreneur should prepare a...