Dimitri Ivanov Is an Accountant with PwC

question 18

Multiple Choice

Dimitri Ivanov is an accountant with PwC.The firm has a very strict policy of requiring all users to change their passwords every sixty days.In early March,Dimitri received an e-mail claiming that there had been an error updating his password and that provided a link to a website with instructions for re-updating his password.Something about the e-mail made Dimitri suspicious,so he called PwC's information technology department and found that the e-mail was fictitious.The e-mail was an example of

• A) social engineering.
• B) piggybacking.
• C) spamming.
• D) phishing.

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Definitions:

Normally Distributed

Refers to a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Equal Variances

A term referring to situations where different samples or populations have similar or identical variability or spread in their data.

ANOVA

A statistical method, Analysis of Variance, used to compare the means of three or more samples to understand if at least one sample mean significantly differs from the others.

Hypothesis

A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.