Van Der Bergh et al. (2011) conducted a study about the use of Facebook by students....
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Van Der Bergh et al. (2011) conducted a study about the use of Facebook by students. A random sample of students from a small university in the United States were contacted via email and asked to complete a survey. One question asked students how much time they spent per day on Facebook. Students who completed the survey were then sent another email which asked them to install software on their computer which monitored the time they spent on Facebook. Of the 110 students who completed the survey, 45 installed the monitoring software on their computer. For these 45 students, the time (in minutes) each student said they spent on Facebook each day (as reported by the student in the survey) was recorded, as was the time (in minutes) each student actually spent on Facebook each day (as measured by the monitoring software)³. The researchers were interested in whether there was a difference between the self-reported time and the actual time, on average. (a) For this study describe the: (i) units, (ii) treatment or factor of interest, (iii) response. (b) Which form of statistical analysis should be used to investigate this data? For your answer, write down EITHER A two-independent sample t-test A paired data t-test OR [1 mark] [1 mark] (c) (i) Use iNZight to draw the appropriate plot(s) for this study. [1 mark] Note: Two files of the data are available on Canvas: Assignments > Assignment 3. You will need to choose Facebook Datal.csv EITHER OR Facebook Data2.csv You may need to manipulate the data prior to drawing your plot(s). [Hint: Consider how the data should be arranged given the answer you chose for (b).] [3 marks] (ii) Comment on any features in the plot(s) in terms of the original story. Van Der Bergh et al. (2011) conducted a study about the use of Facebook by students. A random sample of students from a small university in the United States were contacted via email and asked to complete a survey. One question asked students how much time they spent per day on Facebook. Students who completed the survey were then sent another email which asked them to install software on their computer which monitored the time they spent on Facebook. Of the 110 students who completed the survey, 45 installed the monitoring software on their computer. For these 45 students, the time (in minutes) each student said they spent on Facebook each day (as reported by the student in the survey) was recorded, as was the time (in minutes) each student actually spent on Facebook each day (as measured by the monitoring software)³. The researchers were interested in whether there was a difference between the self-reported time and the actual time, on average. (a) For this study describe the: (i) units, (ii) treatment or factor of interest, (iii) response. (b) Which form of statistical analysis should be used to investigate this data? For your answer, write down EITHER A two-independent sample t-test A paired data t-test OR [1 mark] [1 mark] (c) (i) Use iNZight to draw the appropriate plot(s) for this study. [1 mark] Note: Two files of the data are available on Canvas: Assignments > Assignment 3. You will need to choose Facebook Datal.csv EITHER OR Facebook Data2.csv You may need to manipulate the data prior to drawing your plot(s). [Hint: Consider how the data should be arranged given the answer you chose for (b).] [3 marks] (ii) Comment on any features in the plot(s) in terms of the original story.
Expert Answer:
Answer rating: 100% (QA)
ANSWER a i The units of measurement are minutes ii The treatment or factor of interest is the actual ... View the full answer
Related Book For
Statistics Principles and Methods
ISBN: 978-0470904114
7th edition
Authors: Richard A. Johnson, Gouri K. Bhattacharyya
Posted Date:
Students also viewed these accounting questions
-
A restaurant is interested in whether there is a difference in the tendency to drink beer, wine, and other alcoholic drinks, by gender. If there appears to be a difference, the servers will be...
-
In 1950 health-care expenditures in the United States were 5.2 percent of GDP; by 2000 this share had risen to 15.4 percent. Driving these increases were several factors: increasing relative prices...
-
How do you feel about the use of cost-benefit analysis where human life is part of the cost calculation? Might the infusion of moral language have changed the decision makers thinking? For example,...
-
Look at the following code. Which line will cause a compiler error? Explain why. Line 1 public class ClassA Line 2 { Line 3 public ClassA () {} Line 4 public final int methodl (int a) () Line 5...
-
Consider the following information for McKinley and Son, Inc. Required a. Evaluate the company in terms of ROI. b. While income has increased in fiscal 2012, is it clear that the companys performance...
-
What happens to the air density, pressure, temperature, and total energy when it passes through a normal shock wave?
-
Compute the \(F\) value for a comparison among the three levels representing the average amount of time that swimmers practice weekly ( \( <15\) hours, 15-25 hours, and \(>25\) hours), with the...
-
Images.com is a small Internet retailer of high-quality posters. The company has $800,000 in operating assets and fixed expenses of $160,000 per year. With this level of operating assets and fixed...
-
Solve the Questions. 1. Describe how a bank makes money, what the do for their customers to earn that money, and how it could be improved? 2. Compare banks with the alternatives and determine what is...
-
The following table summarizes the operating results for Bene Petits first year of operations: Bene Petit First year operating data: Single (1 serving) Dual (2 servings) Family (4 servings) Total...
-
Explain why CFC concentrations in the atmosphere are a greater concern than methane.
-
Heat engine X takes in 4.4 times more energy by heat from the hot reservoir than heat engine Y. Engine X delivers 2.4 times more work, and it rejects 8.0 times more energy by heat to the cold...
-
1. In your experiment, did the temperature of the gas increase or decrease when moving from a region of high-pressure to low-pressure? How does this relate to the function of an air-conditioner or...
-
. Describe all of the energy types and transformations that occur while you do the event. For example, if you were talking about driving, you would need to connect the burning of gasoline (chemical...
-
Examine whether the following functions are differentiable at x = 0: f(x) = { x" sin, if x 0 0, if x = 0 for n = 0, 1, 2, and 3.
-
Find the volume of a beverage can that has a height of 6.8 in. and a diameter of 3.6 in. Use 3.14 as an approximation for The volume of the can is (Type an integer or a decimal rounded to the nearest...
-
Calculate the following ratios for your company using the financial statements for the current year and prior year: - Current Ratio - Amount of Working Capital (Current Assets Current Liabilities) -...
-
In Exercises 1558, find each product. (9 - 5x) 2
-
A consultant to all kinds of retailers suggests that they have plenty of baskets available for customers. He bases his suggestion on data collected by watching videos from hidden cameras. Suppose...
-
For a standard normal random variable Z, find (a) P[Z < 1.56] (b) P[Z > 1.245 ] (c) P[.61 < Z < 1.92] (d) P[-1.47 < Z < 1.055]
-
A three-digit number is formed by arranging the digits 1, 2, and 5 in a random order. (a) List the sample space. (b) Find the probability of getting a number less than 400. (c) What is the...
-
Let \(P(A \cap \bar{B})=0.3\) and \(P(\bar{B})=0.6\). Determine \(P(A \cup B)\).
-
Is it possible that for two events \(A\) and \(B\) with \(P(A)=0.4\) and \(P(B)=0.2\) the relation \(P(A \cap B)=0.3\) is true?
-
Check whether for 3 arbitrary random events \(A, B\), and \(C\) the following constellations of probabilities can be true: (1) \(P(A)=0.6, P(A \cap B)=0.2\), and \(P(A \cap \bar{B})=0.5\), (2)...
Study smarter with the SolutionInn App