<p>Hi, everyone. I am self studying and I am not sure whether I can use calculator (TI84) imput and output for my written result on the test paper. Here is an example. </p>
<p>Hypothesis: H0: μ1=μ2 vs. Ha: μ1>μ2 (where μ1 refers to ... μ2 refers to ...)
Condition: the sample should be random, the distribution should be approximately normal
Checking of condition: random selection is specified by the question; normal distribution is shown on the following box plot (graph below not shown)
Test name: 2 sample t-test for difference of means
Perform the test: on the calculator:
x1=1.463
Sx1=0.24
n1=20
x2=1.124
Sx2=0.34
n2=20
μ1>μ2
pooled = no
the result of calculator:
t=3.643
p-value=4.42E-4
df=34.168
Conclusion: since p-value<0.05, H0 can be rejected so the mean of the first group is significantly larger than the mean of the second group.
(end)</p>
<p>So how is this answer? Can I get full credit for showing how to calculate the t and p-value on the calculator?</p>