Who texts more? For their final project, a group of AP Statistics students wanted to compare the texting habits of males and females. They asked a random sample of

students from their school to record the number of text messages sent and received over a two-day period. Here are their data:

a. Make parallel boxplots of the data.

b. Use your calculator to compute numerical summaries for both samples.

c. Do these data suggest that males and females at the school differ in their texting

habits? Use the results from parts (a) and (b) to support your answer.

Short Answer

Expert verified

a.

b. For male: n=15,MaxX=214and for female: n=16,MaxX=379

c. Females are texting more frequently.

Step by step solution

01

Given Information

It is given that:

02

Boxplot

As per given data, parallel box plot is constructed as:

03

Numerical Descriptive Statistics using Calculator.

For male,

For female:

04

If difference exists in texting habits of males and females.

From boxplots, we can say that females are texting more frequently than males.

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

Superpower Refer to Exercise 24.

(a) What proportion of students in the sample who prefer invisibility as their superpower are from the United States?

(b) What percent of students in the sample who are from the United Kingdom prefer superstrength as their superpower?

Country music The lengths, in minutes, of the 50 most popular mp3 downloads of songs by country artist Dierks Bentley are given here.

Make a histogram to display the data. Write a few sentences describing the distribution of song lengths.

Returns on common stocks The return on a stock is the change in its market price plus Page Number: 51 any dividend payments made. Return is usually expressed as a percent of the beginning price. The figure shows a histogram of the distribution of monthly returns for the U.S. stock market over a 273-month period.

Part (a). Describe the overall shape of the distribution of monthly returns.

Part (b). What is the approximate center of this distribution?

Part (c). Explain why you cannot find the exact value for the minimum return. Between what two values does it lie?

Part (d). A return less than 0 means that stocks lost value in that month. About what percent of all months had returns less than 0?

Superpowers A total of 415 children from the United Kingdom and the United States who completed a survey in a recent year were randomly selected. Each student’s country of origin was recorded along with which superpower they would most like to have: the ability to fly, ability to freeze time, invisibility, superstrength, or telepathy (ability to read minds). The data are summarized in the following table.

(a) What proportion of students in the sample are from the United States?

(b) Find the distribution of superpower preference for the students in the sample using relative frequencies.

(c) What percent of students in the sample are from the United Kingdom and prefer telepathy as their superpower preference?

Social mediaThe Pew Research Center surveyed a random sample of U.S. teens and adults about their use of social media. The following pictograph displays some results. Explain how this graph is misleading.

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