Respuesta :
The value of the test statistic is 3.371
What is Hypothesis?
A hypothesis is a notion that is consistent with available data but has not been proven true or wrong.
A hypothesis (also known as a statistical hypothesis) is a statement on which hypothesis testing will be based in statistics. The null hypothesis and alternative hypothesis are two of the most important statistical hypotheses.
Given that,
s1 = 8 , n1 = 330
s2 =7 , n2 = 310
Means
x1 = 33
x2 = 31
standard error is
S ∈ = √S₁²/n₁ + S₂²/n²
S = √8²/330 +7²/310
S = 0.593
Test statistic is Ts = x1-x2/S∈
= 33-31/0.593
Ts = 3.371
The test statistic has a value of 3.371.
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