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A survey of Ohio University students was conducted to determine if there was a particular Green...

A survey of Ohio University students was conducted to determine if there was a particular Green that was desired by students to live on. A sample of students responses are reproduced below. Do students prefer a particular Green? Use critical value = 5.99.

Use the numbers below for this question only!

West Green       South Green        East Green

        30                    80                        121


What would the expected value for the West Green be?

A survey of Ohio University students was conducted to determine if there was a particular Green that was desired by students to live on. A sample of students responses are reproduced below. Do students prefer a particular Green? Use critical value = 5.99.

Use the numbers below for this question only!

West Green       South Green        East Green

        34                    51                        80


What is the calculated chi-squared value?

Math   Statistics-And-Probability   
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Answer #1

(A) We assume that the proportion of green should be same for all three, i.e. p = 1/3

total frequency = 30+80121 = 231

Expected value for West Green = total frequency*proportion = 231*(1/3) = 77

(B) We assume that the proportion of green should be same for all three, i.e. p = 1/3

total frequency = 34+51+80 = 165

Expected value for each Green = total frequency*proportion = 165*(1/3) = 55

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