Question

question
a new mother keeps track of the time when her baby wakes up each morning. what is the level of measurement of the data?
select the correct answer below:
○ nominal
○ ordinal
○ interval
○ ratio

Explanation:

1. Recall the definitions of each level of measurement:

• Nominal: Data is categorized with no order or numerical value (e.g., colors, genders).
• Ordinal: Data is categorized with a natural order but no consistent interval (e.g., rankings like "good", "better", "best").
• Interval: Data has ordered categories with consistent intervals, but no true zero (e.g., temperature in Celsius, time of day as clock time).
• Ratio: Data has ordered categories, consistent intervals, and a true zero (e.g., height, weight, time elapsed).

1. Analyze the data: The time when the baby wakes up (e.g., 6:00 AM, 7:30 AM) is clock time. Clock time has consistent intervals (e.g., the difference between 6:00 and 7:00 is 1 hour, same as 7:00 and 8:00), but there's no true zero (0:00 is a convention, not an absence of time). This fits the interval level.

Answer:

Interval