Homework Help is Here – Start Your Trial Now!
Math
Statistics
8. A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 282. 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 280. Assume that the population standard deviation is 36. At α = 0.03, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Ho and Ha. Choose the correct answer below. OA. Ho: ≤280 Ha: H>280 (claim) O D. Ho: μ = 280 Z= (c) Find the P-value. OB. Ha: H>280 (claim) (b) Find the standardized test statistic z, and its corresponding area. (Round to two decimal places as needed.) P-value= Ho: μ< 280 Ha: 2280 (claim) O E. Ho: H=280 (claim) H₂: H>280 (Round to three decimal places as needed.). OC. Ho: ≤280 (claim) H₂: H>280 OF. Ho: ≥280 (claim) Ha: μ<280

8. A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 282. 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 280. Assume that the population standard deviation is 36. At α = 0.03, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify Ho and Ha. Choose the correct answer below. OA. Ho: ≤280 Ha: H>280 (claim) O D. Ho: μ = 280 Z= (c) Find the P-value. OB. Ha: H>280 (claim) (b) Find the standardized test statistic z, and its corresponding area. (Round to two decimal places as needed.) P-value= Ho: μ< 280 Ha: 2280 (claim) O E. Ho: H=280 (claim) H₂: H>280 (Round to three decimal places as needed.). OC. Ho: ≤280 (claim) H₂: H>280 OF. Ho: ≥280 (claim) Ha: μ<280

MATLAB: An Introduction with Applications
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
icon
Related questions
Question
8. A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 282. 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 280. Assume that the population standard deviation is 36. At α = 0.03, 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. O A. Ho: μ≤280 Ha: μ> 280 (claim) O D. Ho: μ = 280 Z= (c) Find the P-value. Ha: μ> 280 (claim) (b) Find the standardized test statistic z, and its corresponding area. (Round to two decimal places as needed.) P-value= B. Ho: μ< 280 At the 3% significance level, there (1) graders on the exam is more than 280. (1) O is not (2) O is Ha: μ ≥280 (claim) O E. Ho: μ = 280 (claim) Ha:μ> 280 (Round to three decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. Fail to reject Ho Reject Ho (e) Interpret your decision in the context of the original claim. support reject enough evidence to (2) O C. Ho: μ≤280 (claim) Ha:μ> 280 OF. Ho: μ ≥280 (claim) Ha:μ< 280 the administrator's claim that the mean score for the state's eighth
Transcribed Image Text:8. A random sample of 90 eighth grade students' scores on a national mathematics assessment test has a mean score of 282. 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 280. Assume that the population standard deviation is 36. At α = 0.03, 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. O A. Ho: μ≤280 Ha: μ> 280 (claim) O D. Ho: μ = 280 Z= (c) Find the P-value. Ha: μ> 280 (claim) (b) Find the standardized test statistic z, and its corresponding area. (Round to two decimal places as needed.) P-value= B. Ho: μ< 280 At the 3% significance level, there (1) graders on the exam is more than 280. (1) O is not (2) O is Ha: μ ≥280 (claim) O E. Ho: μ = 280 (claim) Ha:μ> 280 (Round to three decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. Fail to reject Ho Reject Ho (e) Interpret your decision in the context of the original claim. support reject enough evidence to (2) O C. Ho: μ≤280 (claim) Ha:μ> 280 OF. Ho: μ ≥280 (claim) Ha:μ< 280 the administrator's claim that the mean score for the state's eighth
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
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