Statistics for Management and Economics (Book Only)
11th Edition
ISBN: 9781337296946
Author: Gerald Keller
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 7.2, Problem 51E
To determine
Calculate mean and variance.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The profit for a production process is equal to $1,000 minus two times the number of units produced. The mean and variance for the number of units produced are 50 and 90, respectively. Find the mean and variance of the profit.
The mean cost of domestic airfares in the United States rose to an all-time high of $395 per ticket. Airfares were based on the total ticket value, which consisted of the price charged by the airlines plus any additional taxes and fees. Assume domestic airfares are normally distributed with a standard deviation of $115. Use Table 1 in Appendix B.
a. What is the probability that a domestic airfare is $540 or more (to 4 decimals)?
b. What is the probability that a domestic airfare is $240 or less (to 4 decimals)?
c. What if the probability that a domestic airfare is between $300 and $490 (to 4 decimals)?
d. What is the cost for the 5% highest domestic airfares? (rounded to nearest dollar)
A NUMMI assembly line, which has been operating since 1984, builds 900 cars and trucks in a week. Generally, 10% of those cars are defective coming off the assembly line.
What type of distribution does the event of having defective cars follow? What are the mean and standard deviation of this random event? (6 points)
Can we apply the normal distribution to study this event? Check the conditions and answer the question. (6 points)
Find the probability that the assembly line produces at least 825 cars, that are not defective and functional, in a week. Graph the situation, shade in the area to be determined, and find the probability. (6 points)
Chapter 7 Solutions
Statistics for Management and Economics (Book Only)
Ch. 7.1 - Prob. 1ECh. 7.1 - Prob. 2ECh. 7.1 - Prob. 3ECh. 7.1 - Prob. 4ECh. 7.1 - Prob. 5ECh. 7.1 - Prob. 6ECh. 7.1 - Prob. 7ECh. 7.1 - Prob. 8ECh. 7.1 - Prob. 9ECh. 7.1 - Prob. 10E
Ch. 7.1 - Prob. 11ECh. 7.1 - Prob. 12ECh. 7.1 - Prob. 13ECh. 7.1 - Prob. 14ECh. 7.1 - Prob. 15ECh. 7.1 - Prob. 16ECh. 7.1 - Prob. 17ECh. 7.1 - Prob. 18ECh. 7.1 - Prob. 19ECh. 7.1 - Prob. 20ECh. 7.1 - Prob. 21ECh. 7.1 - Prob. 22ECh. 7.1 - Prob. 23ECh. 7.1 - Prob. 24ECh. 7.1 - Prob. 25ECh. 7.1 - Prob. 26ECh. 7.1 - Prob. 27ECh. 7.1 - Prob. 28ECh. 7.1 - Prob. 29ECh. 7.1 - Prob. 30ECh. 7.1 - Prob. 31ECh. 7.1 - Prob. 32ECh. 7.1 - Prob. 33ECh. 7.1 - Prob. 34ECh. 7.1 - Prob. 35ECh. 7.1 - Prob. 36ECh. 7.1 - Prob. 37ECh. 7.1 - Prob. 38ECh. 7.1 - Prob. 39ECh. 7.1 - Prob. 40ECh. 7.1 - Prob. 41ECh. 7.1 - Prob. 42ECh. 7.1 - Prob. 43ECh. 7.1 - Prob. 44ECh. 7.2 - Prob. 45ECh. 7.2 - Prob. 46ECh. 7.2 - Prob. 47ECh. 7.2 - Prob. 48ECh. 7.2 - Prob. 49ECh. 7.2 - Prob. 50ECh. 7.2 - Prob. 51ECh. 7.2 - Prob. 52ECh. 7.2 - Prob. 53ECh. 7.2 - Prob. 54ECh. 7.2 - Prob. 55ECh. 7.2 - Prob. 56ECh. 7.2 - Canadians who visit the United Sates often buy...Ch. 7.2 - Prob. 58ECh. 7.2 - Prob. 59ECh. 7.2 - Prob. 60ECh. 7.2 - Prob. 61ECh. 7.2 - Prob. 62ECh. 7.2 - Prob. 63ECh. 7.2 - Prob. 64ECh. 7.2 - Prob. 65ECh. 7.2 - Prob. 66ECh. 7.2 - Prob. 67ECh. 7.2 - Prob. 68ECh. 7.2 - Prob. 69ECh. 7.2 - Prob. 70ECh. 7.3 - Prob. 71ECh. 7.3 - Prob. 72ECh. 7.3 - Prob. 73ECh. 7.3 - Prob. 74ECh. 7.3 - Prob. 75ECh. 7.3 - Prob. 76ECh. 7.3 - Prob. 77ECh. 7.3 - Prob. 78ECh. 7.3 - Prob. 79ECh. 7.3 - Prob. 80ECh. 7.3 - Prob. 81ECh. 7.3 - Prob. 82ECh. 7.3 - Prob. 84ECh. 7.3 - Prob. 85ECh. 7.3 - Prob. 86ECh. 7.3 - Prob. 87ECh. 7.3 - Prob. 88ECh. 7.3 - Prob. 89ECh. 7.3 - Prob. 90ECh. 7.3 - Prob. 91ECh. 7.3 - Prob. 93ECh. 7.3 - Prob. 94ECh. 7.3 - Prob. 95ECh. 7.3 - Prob. 96ECh. 7.3 - Prob. 97ECh. 7.3 - Prob. 99ECh. 7.4 - Prob. 100ECh. 7.4 - Prob. 101ECh. 7.4 - Prob. 102ECh. 7.4 - Prob. 103ECh. 7.4 - Prob. 104ECh. 7.4 - Prob. 105ECh. 7.4 - Prob. 106ECh. 7.4 - Prob. 107ECh. 7.4 - Prob. 108ECh. 7.4 - Prob. 110ECh. 7.4 - Prob. 112ECh. 7.4 - Prob. 113ECh. 7.4 - Prob. 114ECh. 7.4 - Prob. 115ECh. 7.4 - Prob. 116ECh. 7.4 - Prob. 117ECh. 7.4 - Prob. 118ECh. 7.4 - Prob. 119ECh. 7.4 - Prob. 120ECh. 7.4 - Prob. 121ECh. 7.4 - Prob. 122ECh. 7.4 - Prob. 123ECh. 7.4 - Prob. 124ECh. 7.4 - Prob. 125ECh. 7.4 - Prob. 126ECh. 7.4 - Prob. 127ECh. 7.5 - Prob. 128ECh. 7.5 - Prob. 129ECh. 7.5 - Prob. 130ECh. 7.5 - Prob. 131ECh. 7.5 - Prob. 132ECh. 7.5 - Prob. 133ECh. 7.5 - Prob. 134ECh. 7.5 - Prob. 135ECh. 7.5 - Prob. 136ECh. 7.5 - Prob. 137ECh. 7.5 - Prob. 138ECh. 7.5 - Prob. 139ECh. 7.5 - Prob. 140ECh. 7.5 - Prob. 141ECh. 7.5 - Prob. 142ECh. 7.5 - Prob. 143ECh. 7.5 - Prob. 144ECh. 7 - Prob. 145CECh. 7 - Prob. 146CECh. 7 - Prob. 147CECh. 7 - Prob. 148CECh. 7 - Prob. 149CECh. 7 - Prob. 150CECh. 7 - Prob. 151CECh. 7 - Prob. 152CECh. 7 - Prob. 153CECh. 7 - Prob. 154CECh. 7 - Prob. 155CECh. 7 - Prob. 156CECh. 7 - Prob. 157CECh. 7 - Prob. 158CECh. 7 - Prob. 159CECh. 7 - Prob. 160CECh. 7 - Prob. 161CECh. 7 - Prob. 162CECh. 7 - Prob. 163CECh. 7 - Prob. 164CECh. 7 - Prob. 165CECh. 7 - Prob. 166CECh. 7 - Prob. 167CECh. 7 - Prob. 168CECh. 7 - Prob. 169CECh. 7 - Prob. 170CE
Knowledge Booster
Similar questions
- If the mean of the following probability distribution is 3.44, what is the variance? Select one: a. 1.25 b. 9.64 c. 13.08 d. 16.52arrow_forwardIn one of its Spring catalogs, L.L. Bean advertised footwear on 29 of its 192 catalog pages. Suppose we randomly surgery 20 pages. We are interested in the number of pages that advertise footwear. Each page may be picked at most once. Calculate the standard deviationarrow_forwardFind mean if n is 2 and p is 0.7arrow_forward
- A campus finance officer finds that, for all parking tickets issued, fines are paid for 78% of the tickets. The fine is $2. In the most recent week, 620 parking tickets have been issued.a. Find the mean and standard deviation of the number of these tickets for which the fines will be paid.b. Find the mean and standard deviation of the amount of money that will be obtained from the payment of these fines.arrow_forwardUsing the properties of variance, what is the variance of Y=4X−5 where Var(X)=1?arrow_forwardI have a dataset with 20 numbers in it. It has a variance of 16, a mean of 10, and a median of 12. What is the measure of skewness?arrow_forward
- A soft drink machine outputs a mean of 27 ounces per cup. The machine's output is normally distributed with a standard deviation of 44 ounces. What is the probability of filling a cup between 21 and 31 ounces? Round your answer to four decimal places.arrow_forwardUsing the standard normal distribution table, compute the following probabilities P(-1.5 ≤ Z ≤ 1.8) is:arrow_forwardFor the Given values of 56, 67.9, 68, 53.8 and 69.8, Calculate a) Mean b) Algebraic Sum of deviation c) Variance d) Standard Deviation.arrow_forward
- The price for two tickets (including online service charges), a large popcorn, and two medium soft drinks at a sample of six theatre chains is as follows: $36.15 $31.00 $35.05 $40.25 $33.75 $43.00 (a) Compute the mean and median. (b) Compute the variance, standard deviation, and range. (c) Are the data skewed? If so, how? (d) Based on the results of (a) through (c), what conclusions can you reach concerning the cost of going to the movies?arrow_forwardThe total cost for a production process is equal to $1,000 plus two times the number of units produced. The mean and variance for the number of units produced are 500 and 900, respectively. Find the mean and variance of the total cost.arrow_forwardThere is a normal distribution with mean 10 and standard deviation of 8. What is the probability of selecting a value less than 15? Round every step to 2 decimal points.arrow_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:PEARSONEngineering 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 LearningManagerial Economics: A Problem Solving ApproachEconomicsISBN:9781337106665Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike ShorPublisher:Cengage LearningManagerial 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