-x+ y = 12 x-2y=3 Please help
2 answers:
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Answer
test statistic
P-value
Step-by-step explanation:
From the question we are told that
The first sample size is
The first sample mean is
The first standard is
The second is
The second sample mean is
The second standard deviation is
The level of significance is
The null hypothesis is
The alternative hypothesis is
Generally the test statistics is mathematically represented as
=>
=>
Generally degree of freedom is mathematically represented as
=>
=>
From the student t distribution table the probability value to the left that corresponds to at a degree of freedom of
is