Suppose We Create a Deque (Double-Ended Queue) Data Structure

question 36

Multiple Choice

Suppose we create a deque (double-ended queue) data structure. It is basically a queue, with its addLast and removeFirst operations, but we also add the addFirst and removeLast operations. If a line at the grocery store resembles a deque more than a queue, what is the most likely reason?
I the cashier is very fast
II the line is very long
III the cashier is very slow

• A) I
• B) II
• C) I and II
• D) II and III

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Definitions:

Null Hypothesis

A hypothesis in statistical analysis stating that there is no effect or no difference, and it serves as the assumption to be tested.

Independent Samples

Two or more groups of data that are not related or influenced by the same variables.

Critical Value

The threshold value that the test statistic must exceed in order for the null hypothesis to be rejected in hypothesis testing.

F-Table

A table used in statistics that displays the critical values of the F-distribution, which is utilized in analysis of variance (ANOVA) and other tests that compare variances.