Solve 2 and 3

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

Solve 2 and 3

For the following hypothesis tests, ONLY write out the type of test you would use and
the hypotheses. You do not need to work out the test!
1. A magazine looks at how fast three smartphones can download a webpage (in seconds).
the data is as follows:
iPhone
2.4
1.4
3.2
2.7
1.5
4.3
2.2
Android
1.3
3.1
4.2
2.4
5.1
2.2
3.3
5.2
Galaxy
0.9
2.3
3.6
2.7
1.8
Can we say that there is a significant difference between these three phones?
Type of Test:
Hypotheses:
2. A study claims that a higher percentage of children in California suffer from allergies than
children in Minnesota. You sample 19 Californian children, of whom 11 have allergies, and
28 children from Minnesota, of whom 13 have allergies. Is this enough evidence to show
the study is correct?
Type of Test:
Hypotheses:
3. You read in the newspaper that the average age of the workers in the Biden campaign is
28.4 years old. You call the local Biden campaign office, sample 11 workers, and find the
average age to be 25.4 years old, with a sample standard deviation of 8.2 years. Can it be
said that the figure in the newspaper is correct?
Type of Test:
Hypotheses:
Transcribed Image Text:For the following hypothesis tests, ONLY write out the type of test you would use and the hypotheses. You do not need to work out the test! 1. A magazine looks at how fast three smartphones can download a webpage (in seconds). the data is as follows: iPhone 2.4 1.4 3.2 2.7 1.5 4.3 2.2 Android 1.3 3.1 4.2 2.4 5.1 2.2 3.3 5.2 Galaxy 0.9 2.3 3.6 2.7 1.8 Can we say that there is a significant difference between these three phones? Type of Test: Hypotheses: 2. A study claims that a higher percentage of children in California suffer from allergies than children in Minnesota. You sample 19 Californian children, of whom 11 have allergies, and 28 children from Minnesota, of whom 13 have allergies. Is this enough evidence to show the study is correct? Type of Test: Hypotheses: 3. You read in the newspaper that the average age of the workers in the Biden campaign is 28.4 years old. You call the local Biden campaign office, sample 11 workers, and find the average age to be 25.4 years old, with a sample standard deviation of 8.2 years. Can it be said that the figure in the newspaper is correct? Type of Test: Hypotheses:
Expert Solution
steps

Step by step

Solved in 2 steps with 3 images

Blurred answer
Knowledge Booster
Linear Equations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman