EBK STATISTICAL TECHNIQUES IN BUSINESS
17th Edition
ISBN: 9781259924163
Author: Lind
Publisher: MCGRAW HILL BOOK COMPANY
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Chapter 5, Problem 18E
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a) When two variables are correlated, can the researcher be sure that one variable causes the other? If YES , why? If NO , why?
b) What is meant by the statement that two variables are related? Discuss.
SCIE 211 Lab 3: Graphing and DataWorksheetPre-lab Questions:1. When should you use each of the following types of graphs? Fill answers in the table below.Type of Graph Used to showLine graphScatter plotBar graphHistogramPie Chart2. Several ways in which we can be fooled or misled by a graph were identified in the Lab 3Introduction. Find two examples of misleading graphs on the Internet and paste them below. Besure to identify why each graph is misleading.
Data Charts:Circumference vs. Diameter for circular objectsDiameter Can 1 (cm) Can 2 (cm) Can 3 (cm)Trial 1Trial 2Trial 3MeanCircumference Can 1 (cm) Can 2 (cm) Can 3 (cm)Trial 1Trial 2Trial 3MeanScatter Plot Graph – Circumference Vs. DiameterIdentify 2 points of the Trendline.Y1 = ________ Y2 = _________X1 = ________ X2 = _________Calculate the Slope of the Trendline =
Post-lab Questions:1. Answer the questions below. You will need to use the following equation to answer…
The U.S. Bureau of Labor Statistics reports that 11.3% of U.S. workers belong to unions (BLS website, January 2014). Suppose a sample of 400 U.S. workers is collected in 2014 to determine whether union efforts to organize have increased union membership.
a. Formulate the hypotheses that can be used to determine whether union membership increased in 2014.H 0: p H a: p
b. If the sample results show that 52 of the workers belonged to unions, what is the p-value for your hypothesis test (to 4 decimals)?
Chapter 5 Solutions
EBK STATISTICAL TECHNIQUES IN BUSINESS
Ch. 5 - Prob. 1SRCh. 5 - One card will be randomly selected from a standard...Ch. 5 - Prob. 2.2SRCh. 5 - Prob. 2.3SRCh. 5 - Some people are in favor of reducing federal taxes...Ch. 5 - Prob. 2ECh. 5 - Prob. 3ECh. 5 - Prob. 4ECh. 5 - In each of the following cases, indicate whether...Ch. 5 - Prob. 6E
Ch. 5 - Prob. 7ECh. 5 - A sample of 2,000 licensed drivers revealed the...Ch. 5 - Bank of America customers select their own...Ch. 5 - Prob. 3SRCh. 5 - Prob. 4SRCh. 5 - Prob. 11ECh. 5 - Prob. 12ECh. 5 - Prob. 13ECh. 5 - The chair of the board of directors says, There is...Ch. 5 - Suppose the probability you will get an A in this...Ch. 5 - Two coins are tossed. If A is the event two heads...Ch. 5 - Prob. 17ECh. 5 - Prob. 18ECh. 5 - Prob. 19ECh. 5 - Prob. 20ECh. 5 - The aquarium at Sea Critters Depot contains 140...Ch. 5 - A National Park Service survey of visitors to the...Ch. 5 - From experience, Teton Tire knows the probability...Ch. 5 - The board of directors of Tarbell Industries...Ch. 5 - Refer to Table 51 on page 151 to find the...Ch. 5 - Consumers were surveyed on the relative number of...Ch. 5 - Prob. 23ECh. 5 - Prob. 24ECh. 5 - Prob. 25ECh. 5 - Prob. 26ECh. 5 - Prob. 27ECh. 5 - Prob. 28ECh. 5 - Prob. 29ECh. 5 - Prob. 30ECh. 5 - Prob. 31ECh. 5 - Prob. 32ECh. 5 - Prob. 9SRCh. 5 - Prob. 33ECh. 5 - Prob. 34ECh. 5 - Prob. 35ECh. 5 - Prob. 36ECh. 5 - The credit department of Lions Department Store in...Ch. 5 - Prob. 38ECh. 5 - Prob. 10.1SRCh. 5 - Prob. 10.2SRCh. 5 - Prob. 11.1SRCh. 5 - Prob. 11.2SRCh. 5 - Prob. 11.3SRCh. 5 - In a lottery game, three numbers are randomly...Ch. 5 - Prob. 39ECh. 5 - Prob. 40ECh. 5 - Prob. 41ECh. 5 - A telephone number consists of seven digits, the...Ch. 5 - An overnight express company must include five...Ch. 5 - A representative of the Environmental Protection...Ch. 5 - Sam Sneads restaurant in Conway, South Carolina,...Ch. 5 - A company is creating three new divisions and...Ch. 5 - The marketing research department at Pepsico plans...Ch. 5 - The number of times a particular event occurred in...Ch. 5 - The probability that the cause and the cure for...Ch. 5 - Berdines Chicken Factory has several stores in the...Ch. 5 - Prob. 51CECh. 5 - The first card selected from a standard 52-card...Ch. 5 - Prob. 53CECh. 5 - Refer to the following picture. a. What is the...Ch. 5 - Prob. 55CECh. 5 - Assume the likelihood that any flight on Delta...Ch. 5 - Prob. 57CECh. 5 - Prob. 58CECh. 5 - Prob. 59CECh. 5 - Prob. 60CECh. 5 - Prob. 61CECh. 5 - Forty percent of the homes constructed in the...Ch. 5 - Prob. 63CECh. 5 - Prob. 64CECh. 5 - Prob. 65CECh. 5 - Prob. 66CECh. 5 - Prob. 67CECh. 5 - Prob. 68CECh. 5 - Prob. 69CECh. 5 - An investor purchased 100 shares of Fifth Third...Ch. 5 - Flashner Marketing Research Inc. specializes in...Ch. 5 - Prob. 72CECh. 5 - Prob. 73CECh. 5 - Prob. 74CECh. 5 - Prob. 75CECh. 5 - Prob. 76CECh. 5 - Prob. 77CECh. 5 - Prob. 78CECh. 5 - Prob. 79CECh. 5 - Prob. 80CECh. 5 - Prob. 81CECh. 5 - Prob. 82CECh. 5 - Prob. 83CECh. 5 - Prob. 84CECh. 5 - Prob. 85CECh. 5 - Prob. 86CECh. 5 - Prob. 87CECh. 5 - ABC Auto Insurance classifies drivers as good,...Ch. 5 - Prob. 89CECh. 5 - The probability a D-Link network server is down is...Ch. 5 - Prob. 91CECh. 5 - Prob. 92DACh. 5 - Prob. 94DA
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- Suppose that a sports reporter claims the average football game lasts 3 hours, and you believe it's more than that. Your random sample of 35 games has an average time of 3.25 hours. Assume that the population standard deviation is 1 hour. Use a = 0.05. What do you conclude?arrow_forwardSuppose that a pizza place claims its average pizza delivery time is 30 minutes, but you believe it takes longer than that. Your sample of 10 pizzas has an average delivery time of 40 minutes. Assume that the population standard deviation is 15 minutes and the times have a normal distribution. Use a = 0.05. a. What are your null and alternative hypotheses? b. What is the critical value? c. What is the test statistic? d. What is the conclusion?arrow_forwardTable 5: Measurement Data for Question 9 Part Number Op-1, M-1 Op-1, M-2 | Op-2, M-1 Op-2, M-2 | Op-3, M-1 Op-3, M-2 1 21 20 20 20 19 21 2 24 23 24 24 23 24 3 4 5 6 7 8 9 10 11 21 12 8222332 201 21 20 22 20 22 27 27 28 26 27 28 19 18 19 21 24 21 22 19 17 18 24 23 25 25 23 26 20 20 18 19 17 13 23 25 25 2 3 3 3 3 2 3 18 18 21 21 23 22 24 22 20 19 23 24 25 24 20 21 19 18 25 25 14 24 24 23 25 24 15 29 30 30 28 31 16 26 26 25 26 25 17 20 20 19 20 20 843882388 20 18 25 20 19 25 25 30 27 20 18 19 21 19 19 21 23 19 25 26 25 24 25 25 20 19 19 18 17 19 17 Question 9 A measurement systems experiment involving 20 parts, three operators (Op-1, Op-2, Op-3), and two measure- ments (M-1, M-2) per part is shown in Table 5. (a) Estimate the repeatability and reproducibility of the gauge. (b) What is the estimate of total gauge variability?" (c) If the product specifications are at LSL = 6 and USL 60, what can you say about gauge capability?arrow_forward
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