STAT. TECH. FOR BUSINESS AND ECO (LL)
18th Edition
ISBN: 9781265679637
Author: Lind
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 6, Problem 12E
Assume a binomial distribution where n = 5 and π = .30.
- a. Refer to Appendix B.1 and list the probabilities for values of x from 0 to 5.
- b. Determine the
mean and standard deviation of the distribution from the general definitions given in formulas (6–1) and (6–2).
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
7 Consider Figure 29.21. The two tail-ends have equal area. How many standard deviations from the mean must A and B be placed if the tail-ends are (a) 10% (b) 5% (©) 1% of the total area? N(x) A B * Figure 29.21 Graph for Question 7.
TF.13
The English proficiency test scores of the students from a large high school have mean μ = 76 points and standard deviation σ = 8.8 points. Let x̄ be the average salary of a random sample of 40 students.
a) Find the probability that x̄ is between 72 and 80, inclusive.
b) Find the probability that x̄ is at least 77.
6c.) Draw the graphs. Round your final answers up to 6 decimal places, if applicable. Give the correct units.
Chapter 6 Solutions
STAT. TECH. FOR BUSINESS AND ECO (LL)
Ch. 6 - The possible outcomes of an experiment involving...Ch. 6 - The Pizza Palace offers three sizes of cola. The...Ch. 6 - FILE Compute the mean and variance of the...Ch. 6 - FILE Compute the mean and variance of the...Ch. 6 - FILE Compute the mean and variance of the...Ch. 6 - Which of these variables are discrete and which...Ch. 6 - FILE The information below is the number of daily...Ch. 6 - FILE The director of admissions at Kinzua...Ch. 6 - Prob. 7ECh. 6 - Prob. 8E
Ch. 6 - Ninety-five percent of the employees at the J. M....Ch. 6 - In a binomial situation, n = 4 and = .25....Ch. 6 - Prob. 10ECh. 6 - Prob. 11ECh. 6 - Assume a binomial distribution where n = 5 and =...Ch. 6 - An American Society of Investors survey found 30%...Ch. 6 - Prob. 14ECh. 6 - Prob. 15ECh. 6 - FILE A telemarketer makes six phone calls per hour...Ch. 6 - Prob. 17ECh. 6 - Prob. 18ECh. 6 - Prob. 4SRCh. 6 - Prob. 19ECh. 6 - In a binomial distribution, n = 12 and = .60....Ch. 6 - FILE In a recent study, 90% of the homes in the...Ch. 6 - FILE A manufacturer of window frames knows from...Ch. 6 - Prob. 23ECh. 6 - Prob. 24ECh. 6 - Prob. 5SRCh. 6 - Prob. 25ECh. 6 - A population consists of 15 items, 10 of which are...Ch. 6 - Prob. 27ECh. 6 - Prob. 28ECh. 6 - Prob. 29ECh. 6 - Prob. 30ECh. 6 - Prob. 6SRCh. 6 - Prob. 31ECh. 6 - Prob. 32ECh. 6 - Prob. 33ECh. 6 - Automobiles arrive at the Elkhart exit of the...Ch. 6 - It is estimated that 0.5% of the callers to the...Ch. 6 - Prob. 36ECh. 6 - Prob. 37CECh. 6 - For each of the following indicate whether the...Ch. 6 - Prob. 39CECh. 6 - Prob. 40CECh. 6 - Prob. 41CECh. 6 - The payouts for the Powerball lottery and their...Ch. 6 - In a recent study, 35% of people surveyed...Ch. 6 - Prob. 44CECh. 6 - An auditor for Health Maintenance Services of...Ch. 6 - Prob. 46CECh. 6 - Prob. 47CECh. 6 - The Bank of Hawaii reports that 7% of its credit...Ch. 6 - Prob. 49CECh. 6 - Prob. 50CECh. 6 - Prob. 51CECh. 6 - Prob. 52CECh. 6 - Prob. 53CECh. 6 - Prob. 54CECh. 6 - Prob. 55CECh. 6 - Prob. 56CECh. 6 - Prob. 57CECh. 6 - Prob. 58CECh. 6 - Prob. 59CECh. 6 - Prob. 60CECh. 6 - Prob. 61CECh. 6 - Prob. 62CECh. 6 - Prob. 63CECh. 6 - Prob. 64CECh. 6 - The National Aeronautics and Space Administration...Ch. 6 - Prob. 66CECh. 6 - Prob. 67CECh. 6 - Prob. 68CECh. 6 - Prob. 69CECh. 6 - Prob. 70DACh. 6 - Prob. 71DA
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- . Assume a binomial distribution where n = 5 and π = .30.a. Refer to Appendix B.1 and list the probabilities for values of x from 0 to 5.b. Determine the mean and standard deviation of the distribution from the generaldefinitions given in formulas (6–1) and (6–2).arrow_forward6a.) Draw the graphs. Round your final answers up to 6 decimal places, if applicable. Give the correct units.arrow_forwardQuestion 8 Given that X is a normally clistributed ormally clistributed variable with a mean of 50 and a standard deviation of 2, find the probability that X is less than 55. a) 0.9938 b) 0.0062 C) 0.4969 d) 0.5031 e) 0.9876 5@arrow_forward
- The average American gets a haircut every 42 days. Is the average smaller for college students? The data below shows the results of a survey of 15 college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal.40, 37, 42, 46, 46, 28, 31, 39, 44, 31, 45, 39, 41, 42, 48What can be concluded at the the α= 0.05 level of significance level of significance? a. The test statistic= (please show your answer to 3 decimal places.) b. The p-value = (Please show your answer to 3 decimal places. c. Based on this, we should the null hypothesis. Thus, the final conclusion is that ... a.The data suggest the populaton mean is significantly lower than 42 at α= 0.05, so there is sufficient evidence to conclude that the population mean number of days between haircuts for college students is lower than 42. b.The data suggest the population mean number of days between haircuts for college students is not significantly lower than 42 at α= 0.05, so…arrow_forwardI need help with parts “c”, “d, and “e” thanks.arrow_forward3. Let X Pois(4). Find the distribution of Y = √X.arrow_forward
- Part A: The test that uses the t statistic is typically referred to as a t test, while the test that uses z statistic is commonly called a z test. Which of the following statements are true of the t statistic? a. The t statistic does not require any knowledge of the population standard deviation. b. The formula for the t statistic is t = (M – μ) / σMM. c. The t statistic provides an excellent estimate of z, particularly with small sample sizes. d.The t statistic uses the same formula as the z statistic except that the t statistic uses the estimated standard error in the denominator. Part B: With the exception of whether the population standard deviation is known, the necessary assumptions for hypothesis tests with the t statistic and with the z statistic are a. essentially the same b. quite differentarrow_forwardQuestion 9 Suppose that X is normally distributed with a mean of 40 and a standard deviation of 15. What is P(X> 52.45)? a) O 0.203 b) O 0.597 c) O 0.206 d) O 0.297 e) O 0.207 f). O None of the abovearrow_forwardtake M=5arrow_forward
- Answer parts 3 and 4 of the problem below.arrow_forwardA population is normally distributed with µ = 300 and ♂ = 10. a. Find the probability that a value randomly selected from this population will have a value greater than 315. b. Find the probability that a value randomly selected from this population will have a value less than 290. c. Find the probability that a value randomly selected from this population will have a value between 290 and 315.arrow_forward(a) Find the harmonic mean from the following: 7 10 1,3. 15 20 25 28.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Statistics 4.1 Point Estimators; Author: Dr. Jack L. Jackson II;https://www.youtube.com/watch?v=2MrI0J8XCEE;License: Standard YouTube License, CC-BY
Statistics 101: Point Estimators; Author: Brandon Foltz;https://www.youtube.com/watch?v=4v41z3HwLaM;License: Standard YouTube License, CC-BY
Central limit theorem; Author: 365 Data Science;https://www.youtube.com/watch?v=b5xQmk9veZ4;License: Standard YouTube License, CC-BY
Point Estimate Definition & Example; Author: Prof. Essa;https://www.youtube.com/watch?v=OTVwtvQmSn0;License: Standard Youtube License
Point Estimation; Author: Vamsidhar Ambatipudi;https://www.youtube.com/watch?v=flqhlM2bZWc;License: Standard Youtube License