Use the following for questions 24 to 26: A large office building has four entrances through which people can enter. One of the four entrances has had improved landscaping installed. An industrial psychologist wanted to see if people tend to use the entrance that has the improved landscaping more often. Using the buildings video surveillance system he randomly selected 200 people who entered the building. He found that 80 (40%) of the 200 entered through the improved entrance. He would like to determine if this is significantly more than we would expect if all the entrances were equally likely. To determine this he will conduct a test of Ho: p=0.25 vs. Ha: p>0.25. 24. In carrying out his test what null distribution should he use? (0.4)(1-0.4) a. A normal distribution centered at 0.25 with standard deviation 200 (0.4)(1-0.4) b. A normal distribution centered at 0.40 with standard deviation 200 c. A normal distribution centered at 0.40 with standard deviation (0.25)(1-0.25) 200 (0.25)(1–0.25) d. A normal distribution centered at 0.25 with standard deviation 200

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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Use the following for questions 24 to 26: A large office building has four entrances
through which people can enter. One of the four entrances has had improved landscaping
installed. An industrial psychologist wanted to see if people tend to use the entrance that
has the improved landscaping more often. Using the buildings video surveillance system he
randomly selected 200 people who entered the building. He found that 80 (40%) of the 200
entered through the improved entrance. He would like to determine if this is significantly
more than we would expect if all the entrances were equally likely. To determine this he
will conduct a test of Ho: p=0.25 vs. Ha: p>0.25.
24. In carrying out his test what null distribution should he use?
(0.4)(1-0.4)
a. A normal distribution centered at 0.25 with standard deviation
200
(0.4)(1-0.4)
b. A normal distribution centered at 0.40 with standard deviation
200
(0.25)(1-0.25)
С.
A normal distribution centered at 0.40 with standard deviation
200
(0.25)(1-0.25)
d. A normal distribution centered at 0.25 with standard deviation
200
Transcribed Image Text:Use the following for questions 24 to 26: A large office building has four entrances through which people can enter. One of the four entrances has had improved landscaping installed. An industrial psychologist wanted to see if people tend to use the entrance that has the improved landscaping more often. Using the buildings video surveillance system he randomly selected 200 people who entered the building. He found that 80 (40%) of the 200 entered through the improved entrance. He would like to determine if this is significantly more than we would expect if all the entrances were equally likely. To determine this he will conduct a test of Ho: p=0.25 vs. Ha: p>0.25. 24. In carrying out his test what null distribution should he use? (0.4)(1-0.4) a. A normal distribution centered at 0.25 with standard deviation 200 (0.4)(1-0.4) b. A normal distribution centered at 0.40 with standard deviation 200 (0.25)(1-0.25) С. A normal distribution centered at 0.40 with standard deviation 200 (0.25)(1-0.25) d. A normal distribution centered at 0.25 with standard deviation 200
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