Thirty randomly selected students took the calculus final. If the sample mean was 79 and the standard deviation was 5.7. Answer the following questions. 1. The degrees of freedom for the Studentized version of the sample mean is 2. The point estimate for the true mean score of all students is 3. The t-value for a 99% confidence interval, for this sample, is t = (Round to three decimal places) 4. The Margin of error for a 99% confidence interval for this sample is (Round to one decimal place) 5. The 99 % confidence interval estimate of the true mean score of all student is (Round to one decimal place) 6. The sample size is needed, at the 99% confidence level, in order to obtain a margin of error of no more than 1 is (Must be a whole number)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Topic Video
Question
Thirty randomly selected students took the calculus final. If the sample mean was 79 and the standard deviation
was 5.7. Answer the following questions.
1. The degrees of freedom for the Studentized version of the sample mean is
2. The point estimate for the true mean score of all students is
3. The t-value for a 99% confidence interval, for this sample, is t =
(Round to three decimal
places)
4. The Margin of error for a 99% confidence interval for this sample is
(Round to one decimal
place)
5. The 99 % confidence interval estimate of the true mean score of all student is
(Round to one decimal place)
6. The sample size is needed, at the 99% confidence level, in order to obtain a margin of error of no more than 1 is
(Must be a whole number)
Transcribed Image Text:Thirty randomly selected students took the calculus final. If the sample mean was 79 and the standard deviation was 5.7. Answer the following questions. 1. The degrees of freedom for the Studentized version of the sample mean is 2. The point estimate for the true mean score of all students is 3. The t-value for a 99% confidence interval, for this sample, is t = (Round to three decimal places) 4. The Margin of error for a 99% confidence interval for this sample is (Round to one decimal place) 5. The 99 % confidence interval estimate of the true mean score of all student is (Round to one decimal place) 6. The sample size is needed, at the 99% confidence level, in order to obtain a margin of error of no more than 1 is (Must be a whole number)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 5 images

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