I the Mode Is the Value of the Observation That

question 94

Multiple Choice

i. The mode is the value of the observation that appears most frequently.
ii. A distribution that has the same shape on either side of the center is said to be symmetrical.
iii. Negatively skewed indicates that a distribution is not symmetrical. The long tail is to the left or in
The negative direction.

• A) (i), (ii) and (iii) are all correct statements
• B) (i) and, (ii) are correct statements but not (iii).
• C) (i) and, (iii) are correct statements but not (ii).
• D) (ii) and, (iii) are correct statements but not (i).
• E) (i), (ii) and (iii) are all false statements.

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Definitions:

Z-statistic

A measure that describes how many standard deviations an element is from the mean of a population in standardized testing.

Alpha Levels

A threshold value that determines the significance level of a statistical test, representing the probability of rejecting a true null hypothesis (committing a Type I error).

Two-tailed Test

A statistical test that considers the possibility of both positive and negative differences or effects.