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The landlord of a $16$-story apartment building is curious if his tenants are happy with the current temperature in the building.

He surveys the first floor and finds that $26$ out of the $40$ tenants are happy with the current temperature. Suppose the landlord wanted to perform a one-proportion z-test.

Which of the conditions are violated for this procedure?


The population is not at least $10$ times the sample.


The sampling distribution is not approximately normal.


The expected counts are not more than $5$.


The sample is too small.


The data does not come from an SRS.

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