Mark Receives an Email from His Bank Asking Him to Update

question 19

Multiple Choice

Mark receives an email from his bank asking him to update and verify his credit card details.He replies to the mail with all the requested details.Mark later learns that the mail was not actually sent by his bank and that the information he had shared has been misused.Mark is a victim of ________.

• A)hacking
• B)sniffing
• C)data mining
• D)phishing

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Definitions:

Z Statistic

A type of standard score that indicates how many standard deviations an element is from the mean of its population.

Normal Distribution

A bell-shaped frequency distribution curve that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.

One-tailed Test

A statistical hypothesis test in which the alternative hypothesis specifies a direction of the effect.

One-tailed Hypothesis Test

A statistical test in which the region of rejection is on only one side of the sampling distribution, used when a specific direction for the data is predicted.