A sample of 800 computer chips revealed that 74% of the chips do not fail in the first 1000 hours of their use. The company's promotionalliterature states that 72 % of the chips do not fail in the first 1000 hours of their use. The quality control manager wants to test the claim that theactual percentage that do not fail is over the stated percentage. Is there enough evidence at the 0.02 level to support the manager's claim?Step 7 of 7: State the conclusion of the hypothesis test.

Answered: A sample of 800 computer chips revealed…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The United States has an aging infrastructure as witnessed by several recent disasters,including the I-35 bridge failure in Minnesota. Most states inspect their bridges regularly andreport their condition (on a scale from 1–7) to the public. Here are the condition numbers froma sample of 30 bridges in New York State: 5.00 5.44 6.66 5.07 6.80 5.43 4.83 4.25 4.41 4.367.02 5.72 4.58 6.43 3.97 4.32 6.26 6.82 5.26 5.474.96 6.33 4.93 5.61 4.95 7.01 5.57 3.42 5.18 4.51 Choose the correct steam-and-leaf diagram. Do any of the bridges appear to have unusuallygood or poor ratings? If so, compute the mean with and without these bridges.
A soft drink manufacturer wants to determine the proportion of its soda cans that meet quality standards. A quality control engineer randomly selects 2000 cans off the assembly line and finds that 99.7% (1994 of the 2000) meet quality standards. Step 4 of 4: What is the statistic?
What do the results mean? What type of error could you be making and what would that mean? Redo as a one-tail test, expecting a decrease in the number of headaches. Pay attention to what changes and what doesn’t and why.
The answer should be step by step and the answer should be no plagiarism.
A software company is interested in improving customer satisfaction rate from the 53% currently claimed. The company sponsored a survey of 223 customers and found that 128 customers were satisfied. What is the test statistic 2? Ex: 2.22 Check Next Feedback?
Of the 328 patients that completed the survey last year, 211 of them claimed to be returning patients which is 64.3% of the sample. What type of data, quantitative or categorical, is the question “How long did you wait past your appointment time?” asking for? Justify your answer.
It is bleieved that the percent of convicted felons who have a history of juvenile deliquency is 70%. Is there evidence to support the claim that the actual percentage is more than 70% if out of 200 convicted felons, we find that 154 have a history of juvenile deliquency? Set the level of significance at a = 0.05
The Coca-Cola Company reported that the mean per capita annual sales of its beverages in the United States was 423 eight-ounce servings (Coca-Cola Company website, February 3, 2009). Suppose you are curious whether the consumption of Coca-Cola beverages is higher in Atlanta, Georgia, the location of Coca-Cola's corporate headquarters. A sample of 36 individuals from the Atlanta area showed a sample mean annual consumption of 460.4 eight-ounce servings with a standard deviation of s=101.9. Answer questions 8-10.
The first pic is the question, since I’ve been receiving some incorrect answers from the tutors, I included an example problem in the second pic.
In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20 pounds. Suppose that last summer 59 out of a random sample of 85 guests did, in fact, catch northern pike weighing over 20 pounds. Does this indicate that the population proportion of guests who catch pike over 20 pounds is different from 75% (either higher or lower)? Use a = 0.05. (a) What is the level of significance? State the null and alternate hypotheses. O Ho: p = 0.75; H1: p 0.75 (b) What sampling distribution will you use? O The Student's t, since np 5 and ng > 5. O The standard normal, since np 5 and nq > 5. What is the value of the sample test statistic? (Round your answer to two decimal places.) (c) Find the P-value of the test statistic. (Round your answer to four decimal places.)
The results of a recent study show that the proportion of people in the western United States who use seat belts when riding in a car or truckis under 84%. You want to support this claim.

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS