Homework Help is Here – Start Your Trial Now!
Math
Statistics
A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.6 seconds. A random sample of 20 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.08 seconds. At α = 0.01 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha Ho: Hai (Type integers or decimals. Do not round.) ▼hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. The claim is the t= (Round to two decimal places as needed.) Obtain the P-value. P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Ho because the P-value greater than α. (d) Interpret the decision in the context of the original claim. There ▼ enough evidence at the level of significance to % takes for a sedan to travel a quarter mile is (Type integers or decimals. Do not round.) the claim that the mean minimum time it seconds.

A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.6 seconds. A random sample of 20 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.08 seconds. At α = 0.01 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha Ho: Hai (Type integers or decimals. Do not round.) ▼hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. The claim is the t= (Round to two decimal places as needed.) Obtain the P-value. P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Ho because the P-value greater than α. (d) Interpret the decision in the context of the original claim. There ▼ enough evidence at the level of significance to % takes for a sedan to travel a quarter mile is (Type integers or decimals. Do not round.) the claim that the mean minimum time it seconds.

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

Statistics Question 7

 

A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.6 seconds. A random sample of 20 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.08 seconds. At a = 0.01 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha. Ho: Hai (Type integers or decimals. Do not round.) ▼hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. The claim is the t= (Round to two decimal places as needed.) Obtain the P-value. P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Ho because the P-value greater than α. (d) Interpret the decision in the context of the original claim. There ▼ enough evidence at the level of significance to % takes for a sedan to travel a quarter mile is (Type integers or decimals. Do not round.) ▼the claim that the mean minimum time it seconds.
Transcribed Image Text:A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.6 seconds. A random sample of 20 sedans has a mean minimum time to travel a quarter mile of 15.3 seconds and a standard deviation of 2.08 seconds. At a = 0.01 is there enough evidence to support the consumer group's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha. Ho: Hai (Type integers or decimals. Do not round.) ▼hypothesis. (b) Use technology to find the P-value. Find the standardized test statistic, t. The claim is the t= (Round to two decimal places as needed.) Obtain the P-value. P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Ho because the P-value greater than α. (d) Interpret the decision in the context of the original claim. There ▼ enough evidence at the level of significance to % takes for a sedan to travel a quarter mile is (Type integers or decimals. Do not round.) ▼the claim that the mean minimum time it seconds.
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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