Homework Help is Here – Start Your Trial Now!
Math
Statistics
Given these results, which is the most accurate statement you can present to the board of the energy bar company concerning the results of your study? (Assume the industry's standard is to use a two-tailed test with a significance level of a = .05.) O There was no evidence that consuming the energy bar 1 hour before the race began had an effect on performance, t(50) = 2.00, p = 0.468. O There was no evidence that consuming the energy bar 1 hour before the race began had an effect on performance, t(49) = 0.73, p = 0.468. O Consuming the energy bar 1 hour before the race began had a significant effect on performance, t(50) = 2.00, p = 0.73. Participants ran an average of 2 minutes faster when they consumed the energy bar. O Consuming the energy bar 1 hour before the race began had a significant effect on performance, t(49) = 0.73, p = 0.468. Participants ran an average of 2 minutes faster when they consumed the energy bar. Suppose your findings were significant (if they were not). The company produces marketing materials citing your study and claiming that eating the energy bar improves performance. Suppose also that the CEO of a competing energy bar company criticizes your findings. Which of the following criticisms may be a valid point in disputing your findings? O The course was easier last year. Runners tended to improve their times on subsequent attempts of the course, regardless of whether they consumed an energy bar. O You did not have a large enough sample size to make your claim.

Given these results, which is the most accurate statement you can present to the board of the energy bar company concerning the results of your study? (Assume the industry's standard is to use a two-tailed test with a significance level of a = .05.) O There was no evidence that consuming the energy bar 1 hour before the race began had an effect on performance, t(50) = 2.00, p = 0.468. O There was no evidence that consuming the energy bar 1 hour before the race began had an effect on performance, t(49) = 0.73, p = 0.468. O Consuming the energy bar 1 hour before the race began had a significant effect on performance, t(50) = 2.00, p = 0.73. Participants ran an average of 2 minutes faster when they consumed the energy bar. O Consuming the energy bar 1 hour before the race began had a significant effect on performance, t(49) = 0.73, p = 0.468. Participants ran an average of 2 minutes faster when they consumed the energy bar. Suppose your findings were significant (if they were not). The company produces marketing materials citing your study and claiming that eating the energy bar improves performance. Suppose also that the CEO of a competing energy bar company criticizes your findings. Which of the following criticisms may be a valid point in disputing your findings? O The course was easier last year. Runners tended to improve their times on subsequent attempts of the course, regardless of whether they consumed an energy bar. O You did not have a large enough sample size to make your claim.

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
Topic Video
Question
100%
Given these results, which is the most accurate statement you can present to the board of the energy bar company concerning the results of your study? (Assume the industry's standard is to use a two-tailed test with a significance level of a = .05.) O There was no evidence that consuming the energy bar 1 hour before the race began had an effect on performance, t(50) = 2.00, p = 0.468. O There was no evidence that consuming the energy bar 1 hour before the race began had an effect on performance, t(49) = 0.73, p = 0.468. O Consuming the energy bar 1 hour before the race began had a significant effect on performance, t(50) = 2.00, p = 0.73. Participants ran an average of 2 minutes faster when they consumed the energy bar. O Consuming the energy bar 1 hour before the race began had a significant effect on performance, t(49) = 0.73, p = 0.468. Participants ran an average of 2 minutes faster when they consumed the energy bar. Suppose your findings were significant (if they were not). The company produces marketing materials citing your study and claiming that eating the energy bar improves performance. Suppose also that the CEO of a competing energy bar company criticizes your findings. Which of the following criticisms may be a valid point in disputing your findings? The course was easier last year. O Runners tended to improve their times on subsequent attempts of the course, regardless of whether they consumed an energy bar. O You did not have a large enough sample size to make your claim. O The participants who ate the energy bar were characteristically different than those who didn't eat the energy bar. Grade It Now Save & Continue Continue without saving
Transcribed Image Text:Given these results, which is the most accurate statement you can present to the board of the energy bar company concerning the results of your study? (Assume the industry's standard is to use a two-tailed test with a significance level of a = .05.) O There was no evidence that consuming the energy bar 1 hour before the race began had an effect on performance, t(50) = 2.00, p = 0.468. O There was no evidence that consuming the energy bar 1 hour before the race began had an effect on performance, t(49) = 0.73, p = 0.468. O Consuming the energy bar 1 hour before the race began had a significant effect on performance, t(50) = 2.00, p = 0.73. Participants ran an average of 2 minutes faster when they consumed the energy bar. O Consuming the energy bar 1 hour before the race began had a significant effect on performance, t(49) = 0.73, p = 0.468. Participants ran an average of 2 minutes faster when they consumed the energy bar. Suppose your findings were significant (if they were not). The company produces marketing materials citing your study and claiming that eating the energy bar improves performance. Suppose also that the CEO of a competing energy bar company criticizes your findings. Which of the following criticisms may be a valid point in disputing your findings? The course was easier last year. O Runners tended to improve their times on subsequent attempts of the course, regardless of whether they consumed an energy bar. O You did not have a large enough sample size to make your claim. O The participants who ate the energy bar were characteristically different than those who didn't eat the energy bar. Grade It Now Save & Continue Continue without saving
The average time of your sample this year when they consumed the bar (TWITHBAR) is 2 hours and 15 minutes (2:15, or 135 minutes). The average time of your sample last year when they did not consume the bar (TWITHOUTBAR) is 2 hours and 17 minutes (2:17, or 137 minutes). You use a statistical computing package to conduct a repeated-measures t test. The following tables list the output. Paired-Samples Statistics Mean Std Deviation Std Error Mean Pair TWITHOUTBAR 137 50 26.33 3.72 1 TWITHBAR 135 50 24.23 3.43 Paired-Samples Correlations N Correlation Sig Pair 1 TWITHOUTBAR & TWITHBAR 50 0.71 .000 Paired-Samples Test Paired Differences 95% Confidence Interval of the Difference Mean Std Std Error Mean Lower Upper df Sig (2- Deviation tailed) Pair 1 TWITHOUTBAR- 2.00 19.35 2.74 -3.50 7.50 0.73 49 0.468 TWITHBAR
Transcribed Image Text:The average time of your sample this year when they consumed the bar (TWITHBAR) is 2 hours and 15 minutes (2:15, or 135 minutes). The average time of your sample last year when they did not consume the bar (TWITHOUTBAR) is 2 hours and 17 minutes (2:17, or 137 minutes). You use a statistical computing package to conduct a repeated-measures t test. The following tables list the output. Paired-Samples Statistics Mean Std Deviation Std Error Mean Pair TWITHOUTBAR 137 50 26.33 3.72 1 TWITHBAR 135 50 24.23 3.43 Paired-Samples Correlations N Correlation Sig Pair 1 TWITHOUTBAR & TWITHBAR 50 0.71 .000 Paired-Samples Test Paired Differences 95% Confidence Interval of the Difference Mean Std Std Error Mean Lower Upper df Sig (2- Deviation tailed) Pair 1 TWITHOUTBAR- 2.00 19.35 2.74 -3.50 7.50 0.73 49 0.468 TWITHBAR
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE 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