A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 288. This test result prompts astate school administrator to declare that the mean score for the state's eighth graders on this exam is more than 280. Assume that the populationstandard deviation is 36. At α = 0.08, is there enough evidence to support the administrator's claim? Complete parts (a) through (e).(a) Write the claim mathematically and identify H. and Ha. Choose the correct answer below.A. Ho: μ = 280 (claim)H₂:μ> 280D. Ho: μ≤280Ha: μ> 280 (claim)B. Ho: μ = 280Ha: μ> 280 (claim)E. Ho: μ≤280 (claim)Ha:μ>280C. Ho:μ ≥280 (claim)Hg: μ < 280F. Ho: μ< 280H₂:μ ≥280 (claim) Test the claim about the population mean µ at the level of significance a. Assume the population is normally distributed.Claim: μ<4915; α = 0.02 Sample statistics: x= 5017, s=5613, n = 54What are the null and alternative hypotheses?Ho:Ha:(Type integers or decimals. Do not round.)

Answer Given Mean =280Standard deviation =36sample size…

Answered: A random sample of 90 eighth grade…

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

A random sample of 88 eighth grade students' scores on a national mathematics assessment test has a mean score of 281. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 275. Assume that the population standard deviation is 40. At a = 0.03, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). ..... (a) Write the claim mathematically and identify H, and Ha. Choose the correct answer below. ' O A. Ho: µs 275 Hai H> 275 (claim) B. H0: μ 275 c. Ho: μ 275 Ο Ε. Ho: μ = 275 Ha: µ> 275 (claim) OF H : μ2 275 (claim) Ha: µ<275
A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 47.6, with a standard deviation of 10.5. Based on this information, complete the following statements about the distribution of the scores on the writing section for the recent year. (a) According to Chebyshev's theorem, at least ▼(Choose one, 36%, 56%, 75%, 84%, or 89%) of the scores lie between 26.6 and 68.6. (b) According to Chebyshev's theorem, at least 36% of the scores lie between _ and _. (Round your answer to 1 decimal place.)
The mean score on a driving exam for a group of driver’s education students is 76 points, with a standard deviation of 6 points. Apply chebychev’s theorem to the data using K=2. Interpret, At least ___% of the exam score falls between ___and ____
A random sample of 85 eighth grade students' scores on a national mathematics assessment test has a mean score of 292. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 285. Assume that the population standard deviation is 39. At a = 0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Ho and H₂. Choose the correct answer below. OA. Ho: H=285 (claim) B. Ho: ≤285 Ha: H>285 (claim) H₂H>285 OD. Ho: H=285 H₂: H>285 (claim) OE. Ho: 285
A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80, In a recent year, the national mean score for the writing section was 52.0, with a standard deviation of 11.0. Based on this information, complete the following statements about the distribution of the scores on the writing section for the recent year. (a) According to Chebyshev's theorem, at least 56% of the scores lie between O and . (Round your answer to 1 decimal place.) (b) According to Chebyshev's theorem, at least ? v of the scores lie between 30.0 and 74.0.
Please explain in de
A nationwide test taken by high school sophomores and junices has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 51.5, with a standard deviation of 9.0. Based on thes information, complete the following statements about the distritbution of the scores on the writing section for the recent year. (a) According to Chebyshev's theorem, at least E(about 89) ofr the scores lie between and (Round your answer to 1 deomal place.) (b) According to Chebyshev's theorem, at least (Choose one) of the scores lie between 33.5 and 69.5,
A random sample of 83 eighth grade students' scores on a national mathematics assessment test has a mean score of 263. This test result prompts a state school administrator o declare that the mean score for the state's eighth graders on this exam is more than 260. Assume that the population standard deviation is 31. At a = 0.04, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Ho and H₂. Choose the correct answer below. OA. Ho: 2260 (claim) H₂ H 260 OD. Ho: H=260 Ha: μ> 260 (claim) example Get more help. OB. Ho: 260 (claim) OC. Ho: 260 (claim) H₂: H>260 OF. Ho: ≤260 (claim) H₂:μ> 260 Clear all Check answer
Use z scores to compare the given values. Based on sample data, newborn males have weights with a mean of 3282.7 g and a standard deviation of 689.7 g. Newborn females have weights with a mean of 3017.5 g and a standard deviation of 722.2 g. Who has the weight that is more extreme relative to the group from which they came: a male who weighs 1500 g or a female who weighs 1500 g? Since the z score for the male is z = more extreme. (Round to two decimal places.) and the z score for the female is z = [ =, the has the weight that is
A random sample of 80 eighth grade students' scores on a national mathematics assessment test has a mean score of 275. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 270. Assume that the population standard deviation is 33. At a = 0.14, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Ho and H. Choose the correct answer below. A. Ho: us 270 O B. Ho: H 270 Hg: u> 270 (claim) O F. Ho: H2270 (claim) O D. Ho: H=270 (claim) H3:µ> 270 O E. Ho: H= 270 Ha: µ> 270 (claim) Ha: u<270 (b) Find the standardized test statistic z, and its corresponding area. (Round to two decimal places as needed.)
Claim: The mean systolic blood pressure of all healthy adults is less than 125 mm Hg. Sample data: For 261 healthy adults, the mean systolic blood pressure level is 121.18 mm Hg and the standard deviation is 15.97 mm Hg. a. Express the original claim in symbolic form. Let the parameter represent a value with respect to systolic blood pressure of a healthy adult. B. Identify the null and alternative hypotheses.
A nationwide test taken by high school sophomores and juniors has three sections, each scored on a scale of 20 to 80. In a recent year, the national mean score for the writing section was 47.4, with a standard deviation of 9.2. Based on this information, complete the following statements about the distribution of the scores on the writing section for the recent year. (a) According to Chebyshev's theorem, at least (Choose one) of the scores lie between 29.0 and 65.8. (b) According to Chebyshev's theorem, at least (Choose one) ▼ scores lie between 33.6 and 61.2. of the X 3 4

SEE MORE QUESTIONS

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