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koban [17]
3 years ago
10

Please can someone help been struggle with this problem

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

Step-by-step explanation:

domain = { x/ x € Real}

range = { y/ y > -3 , y € Real }

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Answer:

the x² test statistic 13.71

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Step-by-step explanation:

Given the data in the question;

Feeder                     1      2      3       4

Observed visits; o_i  60   90   92    58

data sample = 300

Expected e_i = 300 / 4 = 75

the x² test statistic = ?

X^2_{stat = ∑[ (o_i - e_i)²/e_i]

X^2_{stat = [ (60 - 75)² / 75 ] + [ (90 - 75)² / 75 ] + [ (92 - 75)² / 75 ] + [ (58 - 75)² / 75 ]

X^2_{stat = [ 3 ] + [ 3 ] + [ 3.8533 ] + [ 3.8533 ]

X^2_{stat = 13.7066 ≈ 13.71

Therefore, the x² test statistic 13.71

Option a) 13.71 is the correct answer.

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