Construct a 95% confidence interval for the population mean in Exercise 2. Interpret the results. Exercise 2

Question:

Construct a 95% confidence interval for the population mean in Exercise 2. Interpret the results.

Exercise 2

The driving distances (in miles) to work of 30 people are shown below. Assume the population standard deviation is 8 miles. Find

(a) The point estimate of the population mean σ and

(b) The margin of error for a 95% confidence interval.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Elementary Statistics Picturing The World

ISBN: 9780321911216

6th Edition

Authors: Ron Larson, Betsy Farber

See More Books

Question Posted: Nov 24, 2015 07:54 AM

See More Questions

Construct a 90% confidence interval for the population mean in Exercise 1. Interpret the results. Exercise 1 The waking times (in minutes past 5:00 a.m.) of 40 people who start work at 8:00 a.m. are...
(a) Construct a 90% confidence interval for the population mean in Exercise 1. Interpret the results. (b) Does it seem possible that the population mean could be within 10% of the sample mean?...
In 2003, the American Psychological Association conducted a survey (at research.apa.org) of a random sample of psychologists to estimate mean incomes for psychologists with various academic degrees...
Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = x 3 6x 2 + 5, [3, 5]
In Chapter 2 you read about leveraging (refer to Figure 2.5) as one of the ways by which brand associations are created. Relate that discussion to the concept of imbuing a brand with meaning by...
22. The interest rate investors demand for loaning funds is the a. market interest rate. b. stated rate. C. contractual interest rate. d. bond interest rate. 23. If bonds can be converted into common...
Debate the meaning of the term engagement in the context of work and employment
Hollys Day Care has been in operation for several years. Identify each cost as variable (V), fixed (F), or mixed (M), relative to number of students enrolled. 1. Building rent. 2. Toys. 3....
Capital budget of a Project X is $750000. The target capital structure is 30% of debt and 70% of equity. The capital structure should be maintained. The forecasted net income is $500000.The company...
The Centers for Disease Control and Prevention reported in 2012 that 1 in 88 American children had been diagnosed with an autism spectrum disorder (ASD). 1. If a random sample of 200 American...
The acceleration times (in seconds) from 0 to 60 miles per hour for 26 randomly selected sedans are shown in the table. Use a 98% level of confidence. Assume the sample is from a normally distributed...
(20.75, 24.10) Use the confidence interval to find the margin of error and the sample mean.
If a company deposits $100,000 into an account that earns a market interest rate of 10% per year at a time when the deflation rate is 1% per year, what will be the purchasing power of the accumulated...
Gordon Rivers, the city manager of Saratoga, Florida, pitched the proposed design schedule back at Jay Andrews. Jay Andrews is the project manager for Major Design Corporation (MDC). The city of...
Use the data from SE3-8 to prepare the closing entries for The Decade Company. Close the temporary accounts straight to retained earnings. The balance of $\$ 8,500$ in the retained earnings account...
Draw a Keynesian cross diagram to show the effects of a rise in autonomous expenditure on an economy operating below full employment output.
Governments in many countries are acutely aware of the environmental problems that vehicle emissions can have. Many car manufacturers are exploring the production of electric vehicles, but production...
Draw a simple diagram of John Woodens pyramid of success. You can find it at the official Wooden website www.coachwooden.com/index2.html.
Using the concept of opportunity cost, explain why welfare programs might increase the number of poor.
Halley's comet travels in an ellipti- cal orbit with a = 17.95 and b = 4.44 and passes by Earth roughly every 76 years. Note that each unit represents one astronomical unit, or 93 million miles. The...
Gigabyte, Inc. manufactures three products for the computer industry: The company uses a traditional, volume-based product-costing system with manufacturing overhead applied on the basis of...
The table shows the net sales (in billions of dollars), total assets (in billions of dollars), and shareholders equities (in billions of dollars) for Wal-Mart for six years. Use technology to find...
Two variables have a positive linear correlation. Is the slope of the regression line for the variables positive or negative?
Explain how to predict y-values using the equation of a regression line.
As a Financial Analyst in the Finance Department of Zeta Auto Corporation they are seeking to expand production. The CFO asks you to help decide whether the firm should set up a new plant to...
Chapter 4 When an Auditor finds misstatements in entities financial statements which may be the result of fraudulent act, what should be the role of an auditor under that situation? (2 Points)
Suppose the following input prices are provided for each year: Required: $

Construct a 95% confidence interval for the population mean in Exercise 2. Interpret the results. Exercise 2

Question:

12 9 7 2 8 7 3 27 21 10 13 7 2 30 7 6 13 6 4 1 10 3 13 6 2 9 2 12 16 18

Step by Step Answer:

a z c n 95 196 8 30 95 29 66 ...View the full answer

Elementary Statistics Picturing The World

Students also viewed these Statistics questions