Question

the participants in a research study self - report their sleep quality levels by choosing the response options: 1 - extremely low sleep quality, 2 - very low sleep quality, 3 - low sleep quality, 4 - extremely high sleep quality. which measurement scale is being used to classify sleep quality? nominal ordinal interval ratio question 16 for the following grouped frequency distribution table of exam scores, how many students had scores higher than x = 54? x f 60 - 64 3 55 - 59 4 50 - 54 5 45 - 49 2 40 - 44 1 7 12 8 3

Explanation:

Question 1

The sleep - quality levels (1 - extremely low, 2 - very low, etc.) have an order. Ordinal scales are used when data can be ranked or ordered. Nominal scales are for naming only without order, interval scales have equal intervals but no true zero, and ratio scales have a true zero. Since the sleep - quality levels are ordered, it's an ordinal scale.

Step1: Identify score intervals above 54

The score intervals above 54 are 55 - 59 and 60 - 64.

Step2: Sum the frequencies of relevant intervals

The frequency of the 55 - 59 interval is 4 and the frequency of the 60 - 64 interval is 3. So, \(4 + 3=7\).

Answer:

ordinal

Question 2