Statistics for Business & Economics, Revised (MindTap Course List)
12th Edition
ISBN: 9781285846323
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: South-Western College Pub
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Textbook Question
Chapter 2, Problem 51SE
western University has only one women’s softball scholarship remaining for the coming year. The final two players that western is considering are Allison fealey and Emily Janson. The coaching staff has concluded that the speed and defensive skills are virtually identical for the two players, and that the final decision will be based on which player has the best batting average. Crosstabulations of each player’s batting performance in their junior and senior years of high school are as follows:
A player’s batting average is computed by dividing the number of hits a player has by the total number of at-bats. batting averages are represented as a decimal number with three places after the decimal.
a. Calculate the batting average for each player in her junior year. Then calculate the batting average of each player in her senior year. Using this analysis, which player should be awarded the scholarship? Explain.
b. Combine or aggregate the data for the junior and senior years into one crosstabulation as follows:
| Player | ||
| Outcome | Fealey | Jamon |
| Hit No Hit | ||
| Total At-Bats | ||
Calculate each player’s batting average for the combined two years. Using this analysis, which player should be awarded the scholarship? Explain.
c. Are the recommendations you made in parts (a) and (b) consistent? Explain any apparent inconsistencies.
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Western University has only one women's softball scholarship remaining for the coming year. The final two players that Western is considering are Allison Fealey and Emily Janson. The coaching staff has concluded that the speed and defensive skills are virtually identical
for the two players, and that the final decision will be based on which player has the best batting average. Crosstabulations of each player's batting performance in their junior and senior years of high school are as follows:
Excel File: data02-51.xlsx
Outcome
Hit
No Hit
Allison Fealey
Senior
Junior
Outcome
15
Hit
No Hit
25
75
175
Outcome
Allison Fealey
0.375
0.35
Emily Janson
Calculate the batting average of each player in her senior year.
Senior
Hit
0.3
No Hit
Combined 2-Year Batting
A. Fealey
E. Janson
Emily Janson
Junior
Total At-Bats
40
250
Total At-Bats
200
120
A player's batting average is computed by dividing the number of hits a player has by the total number of at-bats. Batting averages are represented as a…
Grade points are assigned such that an A receives 4 points, a B receives 3 points, a C receives 2 points, a D receives 1 point, and a F receives 0 points. Grades are weighted according to credit hours (units). If a student receives an A in a four-unit class, a D in a two-unit class, a B in a three-unit class and a C in a three-unit
class, what is the student's grade point average?
O A. 2.75
O B. 1.75
O C. 3.00
O D. 2.50
Click to select your answer.
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A market researcher's claim is that women spend more time each day on Facebook than men. If p1 represents the proportion of women on Facebook and p2 represents the proportion of men on Facebook, how would the researcher's claim be represented?
a.
p1 = p2
b.
p1 > p2
c.
p1 < p2
Chapter 2 Solutions
Statistics for Business & Economics, Revised (MindTap Course List)
Ch. 2.1 - Methods 1. The response to a question has three...Ch. 2.1 - A partial relative frequency distribution is...Ch. 2.1 - A questionnaire provides 58 Yes, 42 No, and 20...Ch. 2.1 - for the 20102011 viewing season, the top five...Ch. 2.1 - In alphabetical order, the six most common last...Ch. 2.1 - Nielsen Media Research provided the list of the 25...Ch. 2.1 - The Canmark Research Center Airport Customer...Ch. 2.1 - Data for a sample of 55 members of the Baseball...Ch. 2.1 - The Pew Research Centers Social Demographic...Ch. 2.1 - The Financial Times/Harris Poll is a monthly...
Ch. 2.2 - Consider the following data. a. Develop a...Ch. 2.2 - Consider the following frequency distribution....Ch. 2.2 - Construct a histogram for the data in exercise 12.Ch. 2.2 - Consider the following data. a. Construct a dot...Ch. 2.2 - Construct a stem-and-leaf display for the...Ch. 2.2 - Construct a stem-and-leaf display for the...Ch. 2.2 - Applications A doctors office staff studied the...Ch. 2.2 - A shortage of candidates has required school...Ch. 2.2 - The London School of Economics and the Harvard...Ch. 2.2 - Fortune provides a list of Americas largest...Ch. 2.2 - entrepreneur magazine ranks franchises using...Ch. 2.2 - The Nielsen Home Technology Report provided...Ch. 2.2 - Prob. 24ECh. 2.2 - A psychologist developed a new test of adult...Ch. 2.2 - The 2011 Cincinnati Flying Pig Half-Marathon (13.1...Ch. 2.3 - The following data are for 30 observations...Ch. 2.3 - The following observations are for two...Ch. 2.3 - The following crosstabulation shows household...Ch. 2.3 - Refer again to the crosstabulation of household...Ch. 2.3 - Recently, management at Oak Tree Golf Course...Ch. 2.3 - Table 2.12 shows a data set containing information...Ch. 2.3 - Refer to the data in Table 2.12. a. Prepare a...Ch. 2.3 - Refer to the data in Table 2.12. a. Prepare a...Ch. 2.3 - The U.S. Department of Energys Fuel Economy Guide...Ch. 2.4 - The following 20 observations are for two...Ch. 2.4 - Consider the following data on two categorical...Ch. 2.4 - The following crosstabulation summarizes the data...Ch. 2.4 - A study on driving speed (miles per hour) and fuel...Ch. 2.4 - The Current Results website lists the average...Ch. 2.4 - People often wait until middle age to worry about...Ch. 2.4 - Smartphones are advanced mobile phones with...Ch. 2.4 - The Northwest regional manager of an outdoor...Ch. 2 - Approximately 1.5 million high school students...Ch. 2 - The Pittsburgh Steelers defeated the Arizona...Ch. 2 - Data showing the population by state in millions...Ch. 2 - A startup companys ability to gain funding is a...Ch. 2 - Consumer complaints are frequently reported to the...Ch. 2 - Dividend yield is the annual dividend paid by a...Ch. 2 - One of the questions in a Financial Times/Harris...Ch. 2 - western University has only one womens softball...Ch. 2 - A survey of commercial buildings served by the...Ch. 2 - Table 2.18 shows a portion of the data for a...Ch. 2 - Refer to the data set in Table 2.18. a. Construct...Ch. 2 - Refer to the data set in Table 2.18. a. Construct...Ch. 2 - Refer to the data set in Table 2.18. a. Prepare a...Ch. 2 - Google has changed its strategy with regard to how...Ch. 2 - A zoo has categorized its visitors into three...Ch. 2 - Pelican Stores Pelican Stores, a division of...Ch. 2 - Motion Picture Industry The motion picture...
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