Ho: 4. A recording company claims the mean time to write a song is 7 days. Fifty-five randomly selected songwriters said that it is less than 7 days. Each of the said it takes 5 days to write a song. Ho H: 5. A mathematics teacher claims that the mean grade of Statistics students is 88. The mean grade of the 35 randomly selected Statistics students is 90 which is more than what the mathematics teacher claims. Ho: H:
Ho: 4. A recording company claims the mean time to write a song is 7 days. Fifty-five randomly selected songwriters said that it is less than 7 days. Each of the said it takes 5 days to write a song. Ho H: 5. A mathematics teacher claims that the mean grade of Statistics students is 88. The mean grade of the 35 randomly selected Statistics students is 90 which is more than what the mathematics teacher claims. Ho: H:
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
NOTE: answer only items 3-5
Transcribed Image Text:Express the null hypothesis Ho and alternative hypothesis Ha in notation In the following
situations:
A medical trial was conducted whether or not a new medicine reduces cholesterol by
30%.
Hạ: m= 30 %
H: m 30 %
2. On a driver's test, about 35% passed the test in the first try. A researcher wants to
determine if more than 35% passed in the first try.
Ho: a : 35%
H: a< 35 %
3. A manager claims that the mean age of the employers is 28 years. The mean age of the
randomly selected 50 employees is 26 years, which is not equal to what is clairned by the
1.
manager.
4. A recording company claims the mean time to write a song is 7 days. Fifty-five randomly
selected songwriters said that it is less than 7 days. Each of the said it takes 5 days to write
a song.
Ho:
5. A mathematics teacher claims that the mean grade of Statistics students is 88. The mean
grade of the 35 randomly selected Statistics students is 90 which is more than what the
mathematics teacher claims.
Ho:
H
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