One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 30 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 30 minutes for the cable technician to arrive. The customer asks a simple random sample of 16 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 31.7 minutes with a standard deviation of 8.9 minutes. Assume that the population distribution is approximately normal. Test the customer's claim at the 0.10 level of significance. Step 3 of 3: Draw a conclusion and interpret the decision.
One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 30 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 30 minutes for the cable technician to arrive. The customer asks a simple random sample of 16 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 31.7 minutes with a standard deviation of 8.9 minutes. Assume that the population distribution is approximately normal. Test the customer's claim at the 0.10 level of significance. Step 3 of 3: Draw a conclusion and interpret the decision.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
Related questions
Question
![One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 30 minutes after
a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 30 minutes for the cable technician to arrive.
The customer asks a simple random sample of 16 other cable customers how long it has taken for the cable technician to arrive when they have
called for one. The sample mean for this group is 31.7 minutes with a standard deviation of 8.9 minutes. Assume that the population distribution is
approximately normal. Test the customer's claim at the 0.10 level of significance.
Step 3 of 3: Draw a conclusion and interpret the decision.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdbed7f96-de73-44e2-9417-90c498b3ebf6%2F360f5445-86a9-4b9f-badc-f7e406052ad5%2Fmrfpqq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 30 minutes after
a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 30 minutes for the cable technician to arrive.
The customer asks a simple random sample of 16 other cable customers how long it has taken for the cable technician to arrive when they have
called for one. The sample mean for this group is 31.7 minutes with a standard deviation of 8.9 minutes. Assume that the population distribution is
approximately normal. Test the customer's claim at the 0.10 level of significance.
Step 3 of 3: Draw a conclusion and interpret the decision.
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![Glencoe Algebra 1, Student Edition, 9780079039897…](https://www.bartleby.com/isbn_cover_images/9780079039897/9780079039897_smallCoverImage.jpg)
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
![Holt Mcdougal Larson Pre-algebra: Student Edition…](https://www.bartleby.com/isbn_cover_images/9780547587776/9780547587776_smallCoverImage.jpg)
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
![Glencoe Algebra 1, Student Edition, 9780079039897…](https://www.bartleby.com/isbn_cover_images/9780079039897/9780079039897_smallCoverImage.jpg)
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
![Holt Mcdougal Larson Pre-algebra: Student Edition…](https://www.bartleby.com/isbn_cover_images/9780547587776/9780547587776_smallCoverImage.jpg)
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL