Please answer the following questions. Each response is worth 5 points. Which sc

Question

Please answer the following questions. Each response is worth 5 points. Which scale has a true zero point level of measurement? A ratio scale has a true zero point. 1. 2. A five point likert scale can be classified under which type of measurement scale? 3. Interval scale is the classification a five point likert scale is under. What type of measurement may apply to a person's SAT score? Ordinal scale provides rank. What is the best measure of central tendency for Nominal level data? Mean, is the used central tendency. 4. 5. Themedian _represents the middle or midpoint of values in a distribution. 6. Find the Q1, Q3, and Interquartile ranges values for the following dataset: Ranked Data: 19 21 22 24 24 24 24 25 25 26 Median (50th percentile)-50 Q1 (lower quartile)- 19,21,22,24 Q3 (upper quartile)- 24,24,25,25,26 Interquartile range 7. If you are provided with a dataset with a mean of 210 and a standard deviation of 30, calculate the Z score equivalents of the following raw scores: (a) 180; (b) 250 and (c) 165, (d) what is the interpretation of the Z scores? A=-1 B: 1.3 1.5 Here is your dataset for body fat percentages for 20 college women. Please use this dataset to answer the next 10 questions. 8.

Explanation / Answer

7)

we know that the z score is given as

Z = (X-Mean)/sd

so mean = 210 and sd = 30

if x = 180

Z = (180 -210)/30 = -1

if x = 250

Z = (250 -210)/30 = 1.33

if x = 165

Z = (165 -210)/30 = -1.5

Z scores represent how many standard deviations below or above the mean the data point lies

so
A = 0.1 means that
A lies 0.1 SD above the mean
B lies 1.3 SD above the mean
C lies 1.5 SD above the mean

Please note that we can answer only 1 question at a time , as per the answering guidelines

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