2. Ina random sample of 500 students in SNHS eating lunch, it was found out that 160 preferred sea foods. Construct a 90% confidence interval for the population proportion of all students in SNHS who eat sea foods.

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
Question
Practice Pack

please answer 2.  using z table

1. It is known from past records the grade point average of senior students is normally distributed
with a standard deviation of 0.3. A researcher collects the grade point averoge of 36 sample
students and found out that their mean grade is 2.6. Find a 95% confidence interval for the
grade point average of the entire senior students.
2.
Ina random sample of 500 students in SNHS eating lunch, it was found out that 160 preferred
sea foods. Construct a 90% confidence interval for the population proportion of all students
in SNHS who eat sea foods.
Transcribed Image Text:1. It is known from past records the grade point average of senior students is normally distributed with a standard deviation of 0.3. A researcher collects the grade point averoge of 36 sample students and found out that their mean grade is 2.6. Find a 95% confidence interval for the grade point average of the entire senior students. 2. Ina random sample of 500 students in SNHS eating lunch, it was found out that 160 preferred sea foods. Construct a 90% confidence interval for the population proportion of all students in SNHS who eat sea foods.
Expert Solution
video

Learn your way

Includes step-by-step video

steps

Step by step

Solved in 2 steps with 2 images

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