Statistics for Business and Economics
8th Edition
ISBN: 9780132745659
Author: Paul Newbold, William Carlson, Betty Thorne
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 2.2, Problem 24E
(a)
To determine
The standard deviation of the given assessment.
(b)
To determine
The approximate rate of mean within ±2.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The height (in inches) of a random sample of players in NCAA Division 1 basketball teams is shown to the left.
x
75
80
75
87
77
77
67
83
77
80
73
82
73
71
80
76
72
78
68
74
74
72
76
86
77
77
78
9
Sum of squared deviations: ∑(x − x̅)² = _______.
a
555.83
b
573.02
c
590.74
d
609.01
A random sample of 1-gallon cartons of milk is selected from the automatic filling machine. The contents are precisely measured. The measurements are shown to the right. The measurements are in ounces (1 gallon = 128 oz.)
127.46
129.83
129.51
129.75
128.45
127.34
129.18
127.29
127.28
128.46
127.7
130.87
128.04
125.76
127.77
126.72
127.58
128.5
127.37
128.08
127.51
127.66
129.78
128.42
126.35
126.34
128.53
128.48
15
The sum of the fill of the sample containers is,
a
3586.01
b
3481.56
c
3380.16
d
3281.71
Calculate SP (the sum of products of deviations) for the following scores, Note: Bothmeans are decimal values, so the computational formula works well.X Y0 41 10 54 12 11 3
Chapter 2 Solutions
Statistics for Business and Economics
Ch. 2.1 - Prob. 1ECh. 2.1 - Prob. 2ECh. 2.1 - Prob. 3ECh. 2.1 - Prob. 4ECh. 2.1 - Prob. 5ECh. 2.1 - Prob. 6ECh. 2.1 - Prob. 7ECh. 2.1 - Prob. 8ECh. 2.1 - A random sample of 156 grade point averages for...Ch. 2.1 - Prob. 10E
Ch. 2.2 - Prob. 12ECh. 2.2 - Prob. 13ECh. 2.2 - Prob. 14ECh. 2.2 - Prob. 15ECh. 2.2 - Prob. 16ECh. 2.2 - Prob. 17ECh. 2.2 - Prob. 18ECh. 2.2 - Prob. 19ECh. 2.2 - Prob. 20ECh. 2.2 - Prob. 21ECh. 2.2 - Prob. 22ECh. 2.2 - Prob. 23ECh. 2.2 - Prob. 24ECh. 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 - Prob. 34ECh. 2.4 - Prob. 35ECh. 2.4 - Prob. 36ECh. 2.4 - Prob. 37ECh. 2.4 - Prob. 38ECh. 2.4 - Acme Delivery offers three different shipping...Ch. 2.4 - Prob. 40ECh. 2.4 - Prob. 42ECh. 2.4 - Prob. 43ECh. 2 - Prob. 44ECh. 2 - Prob. 46ECh. 2 - Prob. 47ECh. 2 - Prob. 49ECh. 2 - Prob. 50ECh. 2 - Prob. 51ECh. 2 - Prob. 52ECh. 2 - Prob. 55ECh. 2 - Prob. 56E
Knowledge Booster
Similar questions
- The reliability of an estimator is assessed in terms of its _____. Select one: a. mean b. ease of computation c. coefficient of variation d. variancearrow_forwardAnswer with 100% accuracy.arrow_forwardSCCoast, an Internet provider in the Southeast, developed the following frequency distribution on the age of Internet users. Find the mean and the standard deviation. (Round squared deviations to nearest whole number and final answer to 2 decimal places.) Age (years) Frequency 10 up to 20 3 20 up to 30 7 30 up to 40 18 40 up to 50 20 50 up to 60 12arrow_forward
- Consider the following data: −9,13,−14,−14,−9,−14,−9−9,13,−14,−14,−9,−14,−9 Copy Data Step 3 of 3: Calculate the value of the range.arrow_forwardA quality inspector took five samples, each with four observations, for the length of timefor a chemical test to return a conclusive result. All values are in minutes. Use this informationto develop ONE control chart for the variable measure of time. Use formulas Unit 4 zoom filesto assist with your calculations. The process distribution standard deviation is known to be 0.02minute. Develop the chart with 3-sigma limits. i need the graph as wellarrow_forwardQuestion 1: Find the mean, median, mode, and range for the following list of values: 13, 18, 13, 14, 13, 16, 14, 21, 13arrow_forward
- Southern States Bank and Trust Southern States Bank and Trust monitors its drive-thru service times electronically to ensure that its speed of service is meeting the company's goal. A sample of drive-thru times at the UCF branch was recently taken and is shown here. The frequency is the number of service times and the time interval is the service time in minutes. Time Interval Frequency 10 - 19 5 20 29 12 30 39 13 40 49 11 50 59 6. Compute the mean for these sample data. (Round to the nearest 2 decimal places, if needed.)arrow_forwardConsider a sample with data values of 26, 24, 23, 15, 32, 36, 28, and 24. Compute the range, interquartile range, variance, and standard deviation. Round to 2 decimals, if necessary. Range Interquartile range Variance Standard deviationarrow_forwardThe height (in inches) of a random sample of 28 players in NCAA Division 1 basketball teams is shown to the left. x 75 80 75 87 77 77 67 83 77 80 73 82 73 71 80 76 72 78 68 74 74 72 76 86 77 77 78 5 Sum of squared x minus n times squared mean: ∑x² − nx̅² =_____ a 590.74 b 582.01 c 573.41 d 564.94arrow_forward
- True or False? A dot plot always reveals the exact data range, whether the sample size is large or small.arrow_forwardThe 2018 statistics shows that the average life expectancy of females in Canada has risen to 83.9 years. Assuming the standard 1 deviation of their life expectancy was 7.4 yoars, determine the minimum percentage of females in Canada whose life expectancy was between 75.02 and 92.78 years. Type your numerical answer here. Numbers onlyarrow_forwardFind the mean absolute deviation Find the mean absolute deviation 87, 75, 85, 77, 74, 82, 90, 88, 79, 81 15, 17, 15, 17, 21, 17, 15, 23, 20, 18 Positive Positive Data Mean Difference Value Data Mean Difference Value Sum: Count Sum: Count: Мean Absolute Deviation: Mean of the The average of the "Positive Value" The avera Absolute Deviation: "Positive Value" column column DELLarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Economics (12th Edition)EconomicsISBN:9780134078779Author:Karl E. Case, Ray C. Fair, Sharon E. OsterPublisher:PEARSON
Engineering Economy (17th Edition)EconomicsISBN:9780134870069Author:William G. Sullivan, Elin M. Wicks, C. Patrick KoellingPublisher:PEARSON
Principles of Economics (MindTap Course List)EconomicsISBN:9781305585126Author:N. Gregory MankiwPublisher:Cengage Learning
Managerial Economics: A Problem Solving ApproachEconomicsISBN:9781337106665Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike ShorPublisher:Cengage Learning
Managerial Economics & Business Strategy (Mcgraw-...EconomicsISBN:9781259290619Author:Michael Baye, Jeff PrincePublisher:McGraw-Hill Education
Principles of Economics (12th Edition)
Economics
ISBN:9780134078779
Author:Karl E. Case, Ray C. Fair, Sharon E. Oster
Publisher:PEARSON
Engineering Economy (17th Edition)
Economics
ISBN:9780134870069
Author:William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher:PEARSON
Principles of Economics (MindTap Course List)
Economics
ISBN:9781305585126
Author:N. Gregory Mankiw
Publisher:Cengage Learning
Managerial Economics: A Problem Solving Approach
Economics
ISBN:9781337106665
Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Publisher:Cengage Learning
Managerial Economics & Business Strategy (Mcgraw-...
Economics
ISBN:9781259290619
Author:Michael Baye, Jeff Prince
Publisher:McGraw-Hill Education