To collect information such as passwords, online criminals use “spoofing” to direct Internet users to fraudulent Web sites. In one study of Internet fraud, students were warned about spoofing and then asked to log in to their university account starting from the university’s home page. In some cases, the login link led to the genuine dialog box. In others, the box looked genuine but in fact was linked to a different site that recorded the ID and password the student entered. An alert student could detect the fraud by looking at the true Internet address displayed in the browser status bar below the window, but most just entered their ID and password. Is this study an experiment? Why? What are the explanatory and response variables?

Short Answer

Expert verified

Explanatory Variable =Genuine login box (or not)

Response Variable= Logging in (or not)

Step by step solution

01

Given information

Given in the question that, To collect information such as passwords, online criminals use “spoofing” to direct Internet users to fraudulent Web sites. In one study of Internet fraud, students were warned about spoofing and then asked to log in to their university account starting from the university’s home page. In some cases, the login link led to the genuine dialog box. In others, the box looked genuine but in fact was linked to a different site that recorded the ID and password the student entered. An alert student could detect the fraud by looking at the true Internet address displayed in the browser status bar below the window, but most just entered their ID and password.

We need to find the explanatory and response variables .

02

Explanation

An experiment involves administering a treatment to a group of people with the purpose of observing the consequences.

An observational research does not interfere with the situation in any way and records the reactions discreetly.

The purpose of a response variable is to examine the study's reaction or outcome.

Changes in the answer variable are caused by an explanatory variable.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Kids and toys Refer to Exercise 4. Calculate and interpret the standard deviation of the random variable X. Show your work.

The standard deviation of Tis

(a)22

(b) 16

(c)15.62

(d)11.66

(e)4

Keno is a favorite game in casinos, and similar games are popular in the states that operate lotteries. Balls numbered 1to 80are tumbled in a machine as the bets are placed, then 20of the balls are chosen at random. Players select numbers by marking a card. The simplest of the many wagers available is “Mark 1Number.” Your payoff is 3on a bet if the number you select is one of those chosen. Because 20of 80numbers are chosen, your probability of winning is 20/80, or 0.25. Let X=the amount you gain on a single play of the game.

(a) Make a table that shows the probability distribution of X.

(b) Compute the expected value of X. Explain what this result means for the player

A large auto dealership keeps track of sales made during each hour of the day. Let X=the number of cars sold during the first hour of business on a randomly selected Friday. Based on previous records, the probability distribution of Xis as follows:

Compute and interpret the mean of X.

Ms. Hall gave her class a 10-question multiple-choice quiz. Let X=the number of questions that a randomly selected student in the class answered correctly. The computer output below gives information about the probability distribution of X. To determine each student’s grade on the quiz (out of 100), Ms. Hall will multiply his or her number of correct answers by 10. Let G=the grade of a randomly chosen student in the class.

NMeanMedianStDevMinMaxQ1Q3307.68.51.3241089

(a) Find the median of G. Show your method.

(b) Find the IQR of G. Show your method.

(c) What shape would the probability distribution of Ghave? Justify your answer

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free