At the beginning of school year the average reading comprehension of freshme college students was recorded at 79.37. After three months of studying the sam instruments for reading comprehension test was used for 56 students and score an average of 86.48 with a standard deviation of 4.65. Does staying in th college improve the reading comprehension of the freshmen students?
At the beginning of school year the average reading comprehension of freshme college students was recorded at 79.37. After three months of studying the sam instruments for reading comprehension test was used for 56 students and score an average of 86.48 with a standard deviation of 4.65. Does staying in th college improve the reading comprehension of the freshmen students?
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
Solve using following 7 steps/format provided in picture. Required to do the 7 steps provided in pic. Write readable thanks.
Transcribed Image Text:Solution
1.
Ho: The average life span today is not greater than 72 years.
Ha: The average life span today is greater than 72 years.
0.05
2.
3. t-test (one-tailed)
4. df=n-1
df=100-1=99
t₁ = 1.66 Tabular value
5. Computation using the formula for sample mean compared with population mean
tc =
Substitute the given values in the formula
tc
(x-μ)√n
S
=
F = 69
= 72
μ
n = 100
S = 8.9
HOW
(69-72)√/100
8.9
tc = -3.37
6. Decision: Since t computed value of -3.37 is less than tabular value of 1.66.
Therefore, we reject our null hypothesis (Ho).
7. Formulate conclusion: The average life span today is greater than 72 years.
Transcribed Image Text:At the beginning of school year the average reading comprehension of freshmen
college students was recorded at 79.37. After three months of studying the same
instruments for reading comprehension test was used for 56 students and scored
an average of 86.48 with a standard deviation of 4.65. Does staying in the
college improve the reading comprehension of the freshmen students?
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