3. A company that makes computers has a computer with an average download speed of 87.2 Mbps. The company is in the process of making a new computer with hopes of a greater download speed. The company test 40 new computers and got an average of 91.4 Mbps with a sample standard deviations = 12.9 Mbps. State the p-value and perform the test using the p-value approach with a level of significance of 1%.
3. A company that makes computers has a computer with an average download speed of 87.2 Mbps. The company is in the process of making a new computer with hopes of a greater download speed. The company test 40 new computers and got an average of 91.4 Mbps with a sample standard deviations = 12.9 Mbps. State the p-value and perform the test using the p-value approach with a level of significance of 1%.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Solve number 3 simply
![3. A company that makes computers has a computer with an average download speed of 87.2 Mbps.
The company is in the process of making a new computer with hopes of a greater download speed.
The company test 40 new computers and got an average of 91.4 Mbps with a sample standard
deviation s = 12.9 Mbps. State the p-value and perform the test using the p-value approach with a
level of significance of 1%.
4. At a restaurant, each customer spends an average of $15.21 to eat. The restaurant is going to offer a
special in hopes that each customer will spend more money. The restaurant samples 30 randomly
selected people and got an average of $16.54 per customer with a standard deviation of s= 3.71.
State the p-value and perform the test using the p-value approach with a level of significance of 5%.
5. A university claims that the average starting salary for their graduates is $ 65,305. A high school
senior that is selecting a college to attend thinks that number is smaller and randomly selects 45
graduates of the university and got an average starting salary to be $ 62,592 with a sample standard
deviation s = 8,903. State the p-value and perform the test using the p-value approach with a level of
significance of 1%.
https://www.teacherspayteachers.com/Store/My-Geometry-World](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F06f536f1-3850-4945-9185-008d3f8afd1b%2F612b7738-e150-4b19-99b5-06a255737947%2F289d4rh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. A company that makes computers has a computer with an average download speed of 87.2 Mbps.
The company is in the process of making a new computer with hopes of a greater download speed.
The company test 40 new computers and got an average of 91.4 Mbps with a sample standard
deviation s = 12.9 Mbps. State the p-value and perform the test using the p-value approach with a
level of significance of 1%.
4. At a restaurant, each customer spends an average of $15.21 to eat. The restaurant is going to offer a
special in hopes that each customer will spend more money. The restaurant samples 30 randomly
selected people and got an average of $16.54 per customer with a standard deviation of s= 3.71.
State the p-value and perform the test using the p-value approach with a level of significance of 5%.
5. A university claims that the average starting salary for their graduates is $ 65,305. A high school
senior that is selecting a college to attend thinks that number is smaller and randomly selects 45
graduates of the university and got an average starting salary to be $ 62,592 with a sample standard
deviation s = 8,903. State the p-value and perform the test using the p-value approach with a level of
significance of 1%.
https://www.teacherspayteachers.com/Store/My-Geometry-World
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