ELEMENTARY STATISTICS MANUAL
2nd Edition
ISBN: 9781260017809
Author: NAVIDI MONK
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 2.3, Problem 4E
In Exercises 3—6, fill in each blank with the appropriate word or phrase.
In a back-to-back stein- and-leaf plot, each of the two data sets plotted must have the sane _________.
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Consider the following statistics for a tennis player:
Name: Vance McFarland
age: 28
height: 191 cm
country: ireland
tournament wins: 14
average serving speed: 185 km h-1
ranking: 6
career prize money 3720000 euros
classify each variable as categorical, discrete or continuous.
must show all work or reasoning.
A study on driving speed (miles per hour) and fuel efficiency (miles per gallon) for midsize automobiles resulted in the following data:
Click on the datafile logo to reference the data.
DATA file
3.
a. Which of the following is a scatter diagram with driving speed on the horizontal axis and fuel efficiency on the vertical axis?
1.
Fuel Efficiency (MPG)
Fuel Efficiency (MPG)
-30-
-20
-10
30
-20
10
10.
10
20 30 40
Driving Speed (MPH)
50
20 30 4,0 50
Driving Speed (MPH)
60
60
2.
4.
Fuel Efficiency (MPG)
30
-20
10-
Full Efficiency (MPC)
30
-10-
10
10
Driving Speed 30 50 40 55 30 25 60 25 50 55
Fuel Efficiency 28 25 25 23 30 32 21 35 26 25
20 30 40 50 60
Driving Speed (MPH)
- Select your answer - V
b. Comment on any apparent relationship between these two variables.
For midsized cars, lower driving speeds seem to yield - Select your answer - miles per gallon.
50
20 30 40
Driving Speed (MPH)
6,0
Use the example of temperature and the amount of ice cream sold in a city each day, we are interested in creating an equation that will allow us to predict the amount of ice cream that are sold in the future simply by knowing temperature. (Please fill out the red blanks with appropriate numbers randomly.)
a. Construct a scatter plot of the data. What should the independent variable be? Why?
b. Find the values and discuss what the following mean in context.i. The slope of the regression equationii. The y-intercept of the regression equationiii. The correlation riv. The coefficient of determination r2.
c. Do the data provide convincing evidence that there is a linear relationship between temperature and the amount of ice cream Carry out an appropriate test at a significance level of 0.05 to help answer this question.
Chapter 2 Solutions
ELEMENTARY STATISTICS MANUAL
Ch. 2.1 - In Exercises 5-8, fill in each blank with the...Ch. 2.1 - In Exercises 5-8, fill in each blank with the...Ch. 2.1 - In Exercises 5-8, fill in each blank with the...Ch. 2.1 - In Exercises 5-8, fill in each blank with the...Ch. 2.1 - In Exercises 9—12, determine whether the...Ch. 2.1 - In Exercises 9—12, determine whether the...Ch. 2.1 - In Exercises 9—12, determine whether the...Ch. 2.1 - In Exercises 9—12, determine whether the...Ch. 2.1 - The following bar graph presents the average...Ch. 2.1 - The most common blood typing system divides human...
Ch. 2.1 - Following is a pie chart that presents the...Ch. 2.1 - Prob. 16ECh. 2.1 - Food sources: The following side-by-side bar graph...Ch. 2.1 - Prob. 18ECh. 2.1 - Prob. 19ECh. 2.1 - Popular video games: The following frequency...Ch. 2.1 - More iPods: Using the data in exercise 19:...Ch. 2.1 - Prob. 22ECh. 2.1 - Prob. 23ECh. 2.1 - World population: Following are the populations of...Ch. 2.1 - Ages of video garners: The Nielsen Company...Ch. 2.1 - How secure is your job? In a survey, employed...Ch. 2.1 - Back up your data: In a survey commissioned by the...Ch. 2.1 - Education levels: The following frequency...Ch. 2.1 - Music sales: The following frequency distribution...Ch. 2.1 - Bought a new car lately? The following table...Ch. 2.1 - Instagram followers: The following frequency...Ch. 2.1 - Smartphones: The following table present the...Ch. 2.1 - Smartphone sale: The following table presents the...Ch. 2.1 - Happy Halloween: The following table presents...Ch. 2.1 - Native languages: The following frequency...Ch. 2.2 - Prob. 5ECh. 2.2 - In Exercises 5—8, fill in each blank with the...Ch. 2.2 - In Exercises 5—8, fill in each blank with the...Ch. 2.2 - In Exercises 5—8, fill in each blank with the...Ch. 2.2 - In Exercises 9—12, determine whether the...Ch. 2.2 - In Exercises 9—12, determine whether the...Ch. 2.2 - In Exercises 9—12, determine whether the...Ch. 2.2 - In Exercises 9—12, determine whether the...Ch. 2.2 - In Exercises 13—16, classify the histogram as...Ch. 2.2 - In Exercises 13—16, classify the histogram as...Ch. 2.2 - In Exercises 13—16, classify the histogram as...Ch. 2.2 - In Exercises 13—16, classify the histogram as...Ch. 2.2 - In Exercises 17 and 18, classify the histogram as...Ch. 2.2 - In Exercises 17 and 18, classify the histogram as...Ch. 2.2 - Student heights: The following frequency histogram...Ch. 2.2 - Trained rats: Forty rats were trained to run a...Ch. 2.2 - Prob. 21ECh. 2.2 - Prob. 22ECh. 2.2 - Prob. 23ECh. 2.2 - Prob. 24ECh. 2.2 - Batting average: The following frequency...Ch. 2.2 - Batting average: The following frequency...Ch. 2.2 - Time spent playing video games: A sample of 200...Ch. 2.2 - Murder, she wrote: The following frequency...Ch. 2.2 - BMW prices: The following table presents the...Ch. 2.2 - Geysers: The geyser Old Faithful in Yellowstone...Ch. 2.2 - Hail to the chief: There have been 58 presidential...Ch. 2.2 - Internet radio: The following table presents the...Ch. 2.2 - Brothers and sisters: Thirty students in a...Ch. 2.2 - Cough, cough: The following table presents the...Ch. 2.2 - Prob. 35ECh. 2.2 - Frequency polygon: Using the data in Exercise 26:...Ch. 2.2 - Frequency polygon: Using data in Exercise 27:...Ch. 2.2 - Prob. 38ECh. 2.2 - Ogive: Using the data in Exercise 25 Compute the...Ch. 2.2 - Ogive: Using the data in Exercise 26: Compute the...Ch. 2.2 - Ogive: Using the data in Exercise 27: Compute the...Ch. 2.2 - Prob. 42ECh. 2.2 - Prob. 43ECh. 2.2 - Prob. 44ECh. 2.2 - Prob. 45ECh. 2.2 - Prob. 46ECh. 2.2 - Prob. 47ECh. 2.2 - Prob. 48ECh. 2.3 - In Exercises 3—6, fill in each blank with the...Ch. 2.3 - In Exercises 3—6, fill in each blank with the...Ch. 2.3 - In Exercises 3—6, fill in each blank with the...Ch. 2.3 - In Exercises 3—6, fill in each blank with the...Ch. 2.3 - Prob. 7ECh. 2.3 - In Exercises 7—10, determine whether the...Ch. 2.3 - In Exercises 7—10, determine whether the...Ch. 2.3 - In Exercises 7—10, determine whether the...Ch. 2.3 - Construct a stem-and-leaf plot for the following...Ch. 2.3 - Construct a stem-and-leaf plot for the following...Ch. 2.3 - List the data in the following stem-and-leaf plot....Ch. 2.3 - List the data in the following stein-and-leaf...Ch. 2.3 - Construct a dotplot for the data in Exercise 11.Ch. 2.3 - Prob. 16ECh. 2.3 - BMW prices: The following table presents the...Ch. 2.3 - Hows the weather? The following table presents the...Ch. 2.3 - Air pollution: The following table presents...Ch. 2.3 - Technology salaries: The following table presents...Ch. 2.3 - Tennis and golf: Following are the ages of the...Ch. 2.3 - Pass the popcorn: Following are the running times...Ch. 2.3 - More weather: Construct a dotplot for the data in...Ch. 2.3 - Prob. 24ECh. 2.3 - Prob. 25ECh. 2.3 - Prob. 26ECh. 2.3 - Prob. 27ECh. 2.3 - Prob. 28ECh. 2.3 - Prob. 29ECh. 2.3 - Prob. 30ECh. 2.3 - Prob. 31ECh. 2.3 - Prob. 32ECh. 2.3 - Prob. 33ECh. 2.3 - Article ice sheet: the following table presents...Ch. 2.3 - Prob. 35ECh. 2.4 - In Exercises 3 and 4, fill in each blank with the...Ch. 2.4 - In Exercises 3 and 4, fill in each blank with the...Ch. 2.4 - CD sales decline: Sales of CDs have been declining...Ch. 2.4 - Prob. 6ECh. 2.4 - Prob. 7ECh. 2.4 - Prob. 8ECh. 2.4 - Prob. 9ECh. 2.4 - Prob. 10ECh. 2.4 - Prob. 11ECh. 2.4 - Age at marriage: Data compiled by the U.S. Census...Ch. 2.4 - College degrees: Both of the following time-series...Ch. 2.4 - Prob. 14ECh. 2.4 - Prob. 15ECh. 2 - Following is the list of letter grades for...Ch. 2 - Prob. 2CQCh. 2 - Construct a frequency bar graph for the data in...Ch. 2 - Prob. 4CQCh. 2 - Prob. 5CQCh. 2 - Prob. 6CQCh. 2 - Prob. 7CQCh. 2 - Prob. 8CQCh. 2 - Prob. 9CQCh. 2 - Prob. 10CQCh. 2 - Following are the prices (in dollars) for a sample...Ch. 2 - Prob. 12CQCh. 2 - Prob. 13CQCh. 2 - Prob. 14CQCh. 2 - Prob. 15CQCh. 2 - Trust your doctor: The General Social Survey...Ch. 2 - Internet browsers: The following relative...Ch. 2 - Prob. 3RECh. 2 - Prob. 4RECh. 2 - Prob. 5RECh. 2 - House freshmen: Newly elected members of the U.S....Ch. 2 - More freshmen: For the data in Exercise 6:...Ch. 2 - Royalty: Following are the ages at death for all...Ch. 2 - Prob. 9RECh. 2 - Prob. 10RECh. 2 - Prob. 11RECh. 2 - Prob. 12RECh. 2 - Prob. 13RECh. 2 - Prob. 14RECh. 2 - Falling birth rate: The following time-series...Ch. 2 - Explain why the frequency bar graph and the...Ch. 2 - Prob. 2WAICh. 2 - Prob. 3WAICh. 2 - Prob. 4WAICh. 2 - Prob. 5WAICh. 2 - In the chapter introduction, we presented gas...Ch. 2 - In the chapter introduction, we presented gas...Ch. 2 - In the chapter introduction, we presented gas...Ch. 2 - Prob. 4CSCh. 2 - In the chapter introduction, we presented gas...Ch. 2 - Prob. 6CSCh. 2 - In the chapter introduction, we presented gas...Ch. 2 - Prob. 8CSCh. 2 - In the chapter introduction, we presented gas...
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