Homework Help is Here – Start Your Trial Now!
Math
Statistics
Give the test statistic. O z = 1.64 Ot= 1.58 Ot= 1.64 Oz= 1.58

Give the test statistic. O z = 1.64 Ot= 1.58 Ot= 1.64 Oz= 1.58

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 7PPS
See similar textbooks
icon
Related questions
Question
Question 3: give the test statistic 
A comparative study is done between students who study more than 12 hours for a final exam and those that study less than 12 hours for a final exam. The average final exam score of 200 students that studied more than 12 hours is 84% with a standard deviation of 20%. The average final exam score of 200 students that studied less than 12 hours is 79% with a standard deviation of 40%. At the 5% significance level determine if the average grade of those that study more than 12 hours is higher than those that don't. Take the students that study more than 12 hours as population 1. Give the hypotheses. Null: There is no difference in the average grade between those that study more than 12 hours and those that do not. Alternative: The average grade of those that study more than 12 hours is higher than those that do not. Null: There is no difference in the average grade between those that study more than 12 hours and those that do not. Alternative: The average grade of those that study more than 12 hours is less than those that do not. Null: There is no difference in the average grade between those that study more than 12 hours and those that do not. Alternative: The average grade of those that study more than 12 hours for a final is not equal to those that do not.
Transcribed Image Text:A comparative study is done between students who study more than 12 hours for a final exam and those that study less than 12 hours for a final exam. The average final exam score of 200 students that studied more than 12 hours is 84% with a standard deviation of 20%. The average final exam score of 200 students that studied less than 12 hours is 79% with a standard deviation of 40%. At the 5% significance level determine if the average grade of those that study more than 12 hours is higher than those that don't. Take the students that study more than 12 hours as population 1. Give the hypotheses. Null: There is no difference in the average grade between those that study more than 12 hours and those that do not. Alternative: The average grade of those that study more than 12 hours is higher than those that do not. Null: There is no difference in the average grade between those that study more than 12 hours and those that do not. Alternative: The average grade of those that study more than 12 hours is less than those that do not. Null: There is no difference in the average grade between those that study more than 12 hours and those that do not. Alternative: The average grade of those that study more than 12 hours for a final is not equal to those that do not.
Give the test statistic. O z = 1.64 Ot= 1.58 Ot= 1.64 Oz = 1.58
Transcribed Image Text:Give the test statistic. O z = 1.64 Ot= 1.58 Ot= 1.64 Oz = 1.58
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
SEE MORE TEXTBOOKS