Assignment 1: Selecting the Appropriate T -test Compute a t -test comparing male
ID: 3202616 • Letter: A
Question
Assignment 1: Selecting the Appropriate T-test
Compute a t-test comparing males' and females' heights. You must determine which type of t-test to compute.
Move your output into a Microsoft Word document and write a one-paragraph, APA-formatted interpretation of the results.
2-Sample t: Height by Sex
Method
: mean of Height when Sex = F
: mean of Height when Sex = M
Difference: -
Equal variances are not assumed for this analysis.
Descriptive Statistics: Height
Sex
N
Mean
StDev
SE Mean
F
20
64.5000
2.9469
0.6589
M
20
64.5000
2.9469
0.6589
Estimation for Difference
Difference
95% CI for Difference
0.0000
(-1.8865, 1.8865)
Test
Null hypothesis
H: - = 0
Alternative hypothesis
H: - 0
T-Value
DF
P-Value
0.00
38
1.0000
Method
: mean of Height when Sex = F
: mean of Height when Sex = M
Difference: -
Equal variances are not assumed for this analysis.
Explanation / Answer
The p-value is defined as the probability of obtaining a result equal to or "more extreme" than what was actually observed, when the null hypothesis is true. In frequentist inference, the p-value is widely used in statistical hypothesis testing, specifically in null hypothesis significance testing.
If p value <alpha we reject null hypothesis here p value is 1 which is greater than alpha. We accept null hypothesis.