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:

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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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:
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