Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. a carpet company advertises that it will deliver y

A carpet company advertises that it will deliver your carpet within 15 days of purchase. A...

70.2K

Verified Solution

Question

Statistics

A carpet company advertises that it will deliver your carpetwithin 15 days of purchase. A sample of 49 past customers is taken.The average delivery time in the sample was 16.2 days. Assume thepopulation standard deviation is known to be 5.6 days.

a.

State the null and alternative hypotheses.

b.

Using a critical value, test the null hypothesis at the 5% levelof significance.

c.

Using a p-value, test the hypothesis at the 5% level ofsignificance.

d.

What type of error may have been committed for this hypothesistest?

Answer & Explanation Solved by verified expert
4.1 Ratings (495 Votes)
a null hypothesisHo 15 b for 005 level with right tailed test critical value of z 1645 Decision rule reject Ho if test statistic    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

Statistics
1.2K views

When and how do you use a chi-square distribution to test if two variables are independent?...

Finance
1.2K views

Jetson Industries has a share price of $ 21.57 today. If Jetson is expected to pay...

Electrical Engineering
1.2K views

What's the schematic of the 4-bit multiplier that has two 4-bit inputs and an 8-bit output with...

Biology
1.2K views

What substance has been associated with the EVALI outbreak THC O O Tobacco Vitamin E...

Biology
1.2K views

And please be sure to ask any questions you may have D Question 1 The...

Physics
1.2K views

Can we transfer 5 kWh of heat to an electric resistance wire and produce 6...

Algebra
1.2K views

Use a half angle formula to evaluate the expression without using a calculator 1 2...

Accounting
1.2K views

Exercise 11-5 Pearl Industries Ltd., a public company, presents you with the following information: (a)...

Accounting
1.2K views

MFW Co kused a portion of tis sove to andhes compary for eight months beginning...

Accounting
1.2K views

Brief Exercise G-18 * Your answer is incorrect. Try again. Bentley Company issues a 10%,...

Finance
1.2K views

Microtech Ltd has a project that has an initial cash outflow of $60,000 and cash...

Finance
1.2K views

Davis Industries must choose between a gas-powered and an electric-powered forklift truck for moving materials...