Question 25 (multiple choice) A sleep lab wants to know how many hours of sleep

Question

Question 25 (multiple choice) A sleep lab wants to know how many hours of sleep peopie are getting in the state of Maine. The lsb uses census data to create A sleep lab wants to know how many hours of sleep people are getting in the state of Maine. The lab uses census data to create proportionally sized groups of various ages races locations, and income levels within the state. People in each group are asked to record how much sleep they get every Monday night for eight weeks to sleep more on certain nights of the week than on others

Explanation / Answer

Here the sleep lab's data analysis it was told that each group people are asked to record how much sleep they are getting every sunday night.

This recording method may yield bias.

Because

It does not depend on the sleeping hours of only monday nights.

The number of sleeping hours may change for different days.

To remove bias

The average of sleep for everyday should be taken for certain period of days

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