MLSC 2030 Final Test Questions & Answers 2024/2025
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Course
MLSC 2030
Institution
MLSC 2030
MLSC 2030 Final Test Questions & Answers 2024/2025
be able to find mean, median, mode, range, variance, and standard deviation of a set - ANSWERS
how to find standard deviation - ANSWERS
how to find the range - ANSWERSmax-min
A data set will have a greater variability when... - ANSWER...
MLSC 2030 Final Test Questions &
Answers 2024/2025
be able to find mean, median, mode, range, variance, and standard deviation of a set - ANSWERS
how to find standard deviation - ANSWERS
how to find the range - ANSWERSmax-min
A data set will have a greater variability when... - ANSWERSit has a higher standard deviation and
variance
4.New uric acid Level II(high) controls were assayed 100 times. The values show a mean of 8.3mg/dL and
2 SD of 0.4mg/dL. Calculate the following and include units.
a.the range where 68% of the results will fall:
b.the range where 95% of the results will fall: - ANSWERSa. 8.1 to 8.5 mg/dL
b. 7.9 to 8.7 mg/dL
When a p value is below 0.05... - ANSWERSthe difference is significant
What does an r value of -0.80 tell us about the relationship of two variables? - ANSWERSit is an indirect
(negative) relationship that is strongly correlated
What does an r value of 0.90 tell us about the relationship of two variables? - ANSWERSit is a direct
(positive) relationship that is strongly correlated
What does an r value of 0.30 tell us about the relationship of two variables? - ANSWERSit is a direct
(positive) relationship that is weakly correlated
, What is a Nominal level or measurement? - ANSWERS-Named variables
-A scale that categorized items
ex: types of dog breeds, marital status
What is a Ordinal level or measurement? - ANSWERS-Named and ordered variables
-A scale that categorized and rank orders items
ex: condition of house for sale (excellent, good, fair, poor)
What is a Interval level or measurement? - ANSWERS-Named, ordered, and proportionate interval
between variables
-A scale that categorized, rank orders items, and has equal intervals
ex: measure of motivation (score)
What is a Ratio level or measurement? - ANSWERS-Named, ordered, proportionate interval, and can
accommodate absolute zero
-A scale that categorized, rank orders items, has equal intervals, and a zero that means the absence or
none of the thing being measured
ex: urine drugs of abuse test results
t(50)= ‐0.10 , p=0.03
a. what is the test statistic used?
b. what is the obtained value in this instance?
c. what does the number 50 indicate?
d. what does p=0.03 indicate? - ANSWERSa. t-test
b. -0.10
c. the number of the degrees of freedom
d. the difference between groups is significant
What is the test that can be used if the data is not normally distributed, and compares the difference
between what is observed and what is expected to occur by chance? - ANSWERSOne sample chi-square
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