Question: 14.22 Multiple comparison for time on Facebook Refer to Exercise 14.13, which investigated the amount of time freshman, sophomores, juniors, and seniors spent on Facebook

14.22 Multiple comparison for time on Facebook Refer to Exercise 14.13, which investigated the amount of time freshman, sophomores, juniors, and seniors spent on Facebook while doing schoolwork. The data from the study are available on the book’s website, where time is measured in minutes.

a. If you want to construct confidence intervals between all possible pairs of means for the four classes, how many intervals do you need to construct?

b. Using software (such as the web app ANOVA accessible from the book’s website), find the confidence intervals for all possible pairs of population means such that the overall error rate of all intervals is 0.05 (use Tukey’s method). Visualize the confidence intervals in a figure similar to Figure 14.4. (The web app can construct such a plot, which you can download.)

c. Is it true that seniors spent significantly less time than all other classes? Explain.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Statistics Alive Questions!

Refer to Exercise 14.13, which investigated the amount of time freshman, sophomores, juniors, and seniors spent on Facebook while doing schoolwork. The data from the study are available on the books...

A longitudinal study of the impact of COVID-19 restrictions on students' health behavior, mental health and Emotional well-being Reuter, Peter R;Forster, Bridget L;Kruger, Bethany J. PeerJ; San Diego...

Do freshmen spent significantly more time on Facebook than other class ranks? A recent study (R. Junco, Journal of Applied Developmental Psychology, 2015, vol. 36, p. 1829) investigated the amount of...

14.13 Time on Facebook Do freshmen spent significantly more time on Facebook than other class ranks? A recent study (R. Junco, Journal of Applied Developmental Psychology, 2015, vol. 36, p. 1829)...

\fThis is an electronic version of the print textbook. Due to electronic rights restrictions, some third party content may be suppressed. Editorial review has deemed that any suppressed content does...

Use "You Can Lead a Horse to Water but You Can't Make Him Edit: Varied Effects of Feedback on Grammar Across Upper-Division Business Students" (Located Below the Page) Develop a 500-750 summary of...

Please help!! Use "You Can Lead a Horse to Water but You Can't Make Him Edit: Varied Effects of Feedback on Grammar Across Upper-Division Business Students" (Located Below the Page) Found directly...

I have attached 2 business research. Write a 700- to 1,050-word paper in which you practice identifying the critical first stage of developing any research study: State the purpose of the business...

11. Urban traffic congestion throughout the world has been increasing in recent years, especially in developing countries. The accompanying table shows the number of minutes that randomly selected...

CoursHeroTranscribedText: A 5-year loan in the amount of $48,000 is to be repaid in equal annual payments. What is the remaining principal balance after the third payment if the interest rate is 5...

Excess demand exists when Select one: O a. quantity demanded does not equal supply. O b. demand is rising. O c. price is below the equilibrium price. O d. market prices are very low.

Why do you think many managers are surprised by environmental changes and unable to help their organizations adapt? Can a manager ever be prepared for an environmental change as dramatic as that...

What is the payback period of the investment in years? ( Round your final answer to two decimal places. ) Active Mama manufactures baby furniture, clothing, strollers, and accessories. In the current...

In December 2014, Nell, Inc., an accrual basis taxpayer, paid $12,000 for insurance premiums for her business for the 2015 calendar year. How much of the premiums can Nell, Inc., deduct in 2014?

15.2 Show that the random walk with p D q D 1=2 (15.10) returns to the origin infinitely often, and therefore the origin is a recurrent state of the chain.

15.1 Consider theMarkov chain for the Ehrenfest chain described in Example 15.4. Show that the stationary distribution is the binomial with p D q D 1=2.

14.8 Given two uniform random variables U1 and U2 between R and CR, as often available in common programming software, provide an analytic expression to simulate a Gaussian variable of mean and...

ing Time: 1 hour, 38 minutes, 36 seconds Lion Completion Status: QUESTION 8 A company had the following purchases during its first year of operations January March Purchases 30 units at $30 Sales 35...

Bell, Biv, and Devoe Company had the following activities, estimated indirect activity costs, and allocation bases: Activities Indirect Activity Costs Allocation Base Account inquiry (hours) $85,700...

EXHIBIT 13B-2 Present Value of an Annuity of $1 in Arrears; [1-(+) Periods 4% 5% 6% 7% -2345 60800 2.577 3.312 3.993 7 8% 0.962 0.952 0.943 0.935 0.926 1.886 1.859 1.833 1.808 1.783 2.775 2.723 2.673...