A survey of 77 commercial airline flights of under 2 hours resulted in a sample average late
Question:
A survey of 77 commercial airline flights of under 2 hours resulted in a sample average late time for a flight of 2.48 minutes. The population standard deviation was 12 minutes. Construct a 95% confidence interval for the average time that a commercial flight of under 2 hours is late. What is the point estimate? What does the interval tell about whether the average flight is late?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 100% (2 reviews)
n 77 248 12 95 Confidence z 025 196 248 268 020 516 The point estimate is ...View the full answer
Answered By
Somshukla Chakraborty
I have a teaching experience of more than 4 years by now in diverse subjects like History,Geography,Political Science,Sociology,Business Enterprise,Economics,Environmental Management etc.I teach students from classes 9-12 and undergraduate students.I boards I handle are IB,IGCSE, state boards,ICSE, CBSE.I am passionate about teaching.Full satisfaction of the students is my main goal.
I have completed my graduation and master's in history from Jadavpur University Kolkata,India in 2012 and I have completed my B.Ed from the same University in 2013. I have taught in a reputed school of Kolkata (subjects-History,Geography,Civics,Political Science) from 2014-2016.I worked as a guest lecturer of history in a college of Kolkata for 2 years teaching students of 1st ,2nd and 3rd year. I taught Ancient and Modern Indian history there.I have taught in another school in Mohali,Punjab teaching students from classes 9-12.Presently I am working as an online tutor with concept tutors,Bangalore,India(Carve Niche Pvt.Ltd.) for the last 1year and also have been appointed as an online history tutor by Course Hero(California,U.S) and Vidyalai.com(Chennai,India).
4.00+
2+ Reviews
10+ Question Solved
Related Book For
Business Statistics for Contemporary Decision Making
ISBN: 978-0470910184
6th Edition
Authors: Ken Black
Question Posted:
Students also viewed these Statistics questions
-
The population mean is $65 and the population standard deviation is $30. Find the probability that the average of 35 randomly selected transactions is between $55 and $60. You may assume that the...
-
Repeat Exercise 12 assuming that the population standard deviation s is known to be 1.065 lb. Conduct the hypothesis test using a known value of the population standard deviation .
-
Define what is meant by the population standard deviation and explain its importance in variables sampling. What is the relationship between the population standard deviation and the required sample...
-
Given the observed yields below, what is the 1-year forward rate, 4 years from now? [Hint: This is the 1-year return that will take you from the 4-year average annualized return (yield) to the 5-year...
-
a. Find the general traffic pattern of the freeway network shown in the figure. (Flow rates are in cars/minute.) b. Describe the general traffic pattern when the road whose flow is x5 is closed. c....
-
Describe how decision support systems and business application software can help improve employee productivity.
-
Below is a frequency distribution table for a hypothetical variable: a. How many of the scores for this variable have the value 2? b. What percentage of the scores has the value of 7 ? Value f% 7 5...
-
One year ago, your company purchased a machine used in manufacturing for $110,000. You have learned that a new machine is available that offers many advantages; you can purchase it for $150,000...
-
Using the typical floor plan on next page as a base, propose a trunk & branches overhead layout of the ducts serving the typical floor's via mixing mechanical ventilation. 1) Identify different...
-
Aspin Hockey Training Inc. prepares adjustments annually and showed the following on its June 30, 2020, year-end. The unadjusted Trial Balance as below: Aspin Hockey Training Trial Balances 30-Jun-20...
-
According to a survey by Runzheimer International, the average cost of a fast-food meal (quarter-pound cheese-burger, large fries, medium soft drink, excluding taxes) in Seattle is $4,82. Suppose...
-
A regional survey of 560 companies asked the vice president of operations how satisfied he or she was with the software support received from the computer staff of the company. Suppose 33% of the 560...
-
Identify the two methods of evaluating the performance materiality of uncorrected misstatements. What are the requirements of Staff Accounting Bulletin No. 108 for evaluating the performance...
-
Using linear approximation for demand learning, (1) why the algorithm converges given that it uses a linear function to estimate a nonlinear function? (2) If for stage i, the length of half stage is...
-
Some argue that schedule estimates should not be treated as deadlines. Explain whether you agree. Evaluate whether this applies to budget estimates. Assess why most of projects end up taking more...
-
A project has aggregated costs of $1,750,000 with a contingency reserve of $130,000 and a management reserve of $70,000.How much should the customer (who is also the sponsor of this project) be asked...
-
A company culture that supports stress reduction is key to the success of any program within the company. What are some obstacles that can arise when handling stress within a workplace? What are some...
-
Evaluating strategies for cost reduction in SCM relating to exports and imports. Methods of Implementation Describe the method or design, tasks and procedures of implementation. Provide examples of...
-
The pK a of HIO(aq), hypoiodous acid, is 10.64 and that of HIO 3 (aq), iodic acid, is 0.77. Account for the difference in strength.
-
Define a traverse in Surveying?
-
How does the supply curve move vertically when supply increases or goes up? What do up and down refer to in demand and supply diagrams?
-
According to the U.S. Census Bureau, the average travel time to work in Philadelphia is 27.4 minutes. Suppose a business researcher wants to estimate the average travel time to work in Cleveland...
-
Suppose a random sample of turkey prices is taken from across the nation in an effort to estimate the average turkey price per pound in the United States. Shown here is the Minitab output for such a...
-
Suppose the following data are selected randomly from a population of normally distributed values. Construct a 95% confidence interval to estimate the populationmean. 40 51 43 48445754 39 42 4845 39...
-
Orion Languages, Incorporated (OLI) offers conversational instruction in several languages. Customers can choose from three approaches: Group, Individual, or Intense. Group customers meet as a part...
-
Payroll is prepared for the month of January. Paychecks will be issued February 7. Annual salary information is as follows: Bryant, $36,000; Lennox, $40,000; Larkin, $26,000. Each employee...
-
Porter Pots ("PP") Pte Ltd manufactures a single product (an earthen self-cooking pot) and uses a standard costing system for control purposes. PP budgeted to produce and sell 14,000 units this year....
Study smarter with the SolutionInn App