Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. historically, the population average waiting time

Historically, the population average waiting time to check out of a supermarket has been 4 minutes....

60.1K

Verified Solution

Question

Statistics

Historically, the population average waiting time to check outof a supermarket has been 4 minutes. Recently, inan effort to reduce the waiting time, the supermarket experimentedwith a recommendation system that generates real-time informationto management the on number of cashiers to staff. The systeminvolves infrared cameras that measure the amount of body heat inthe checkout area of the store. The data from the cameras are feedin to an analytical software system that determines how manycustomers are waiting in line. After reviewing the results of theanalytical software system, management determines how many cashiersto staff from the existing employees in other service areas of thestore. A test of the new recommendation was conducted on asample of 100 customers, and their meanwaiting time to check out was 3.10 minutes, with asample standard deviation of 2.5 minutes.

a. At the 0.05 level of significance determine if there isevidence to conclude that the recommendation system helpedmanagement to significantly reduce customer waiting time.

b. What technique did you use to determine your answer in parta?

c. Give the details necessary to demonstrate the technique to anaudience.

d. What assumptions did you make in part a?

Answer & Explanation Solved by verified expert
4.4 Ratings (900 Votes)
a 4 31    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

Use duality to answer the following application. Oz makes lion food out of giraffe and gazelle...

Programming
1.2K views

Please, i need Unique answer, Use your own words (don't copy and paste). *Please, don't use handwriting. Please,...

Psychology
1.2K views

What are the different forms of contraception and how do they work (e.g., what stage of...

Biology
1.2K views

What vehicles must stop at all railroad crossings Pick up trucks School buses and passenger...

Geometry
1.2K views

e graph of the function f x is shown below Draw the graph of g...

Accounting
1.2K views

Chang Company provided the following data for this year: The company uses a predetermined...

Accounting
1.2K views

Current Attempt in Progress The ledger of Sarasota Lake Lumber Supply on July 31,2025, includes...

Finance
1.2K views

Avicorp has a $14.6 million debt issue outstanding, with a 5.9% coupon rate. The debt...

Accounting
1.2K views

8 Need this done asap. Please help. Thanks. Vertical Analysis of Balance Sheet...

Finance
1.2K views

An agent will be personally liable for claims originating from any insurance policies O covered...

Finance
1.2K views

Common stock value-Constant growth Personal Finance Problem Over the past 6 years, Elk County Telephone...

Finance
1.2K views

Using the stock data I provided (XOM, WYN, AAPL) change the provided bootstrap model to...