You wish to test the following claim (H1H1) at a significance
level of α=0.05α=0.05.
Ho:μ1=μ2Ho:μ1=μ2
H1:μ1≠μ2H1:μ1≠μ2
You believe both populations are normally distributed, but you do
not know the standard deviations for either. However, you have
reason to believe that the variances of the two populations are
equal. You obtain a sample of size n1=12n1=12 with a mean of
M1=83.9M1=83.9 and a standard deviation of SD1=20.7SD1=20.7 from
the first population. You obtain a sample of size n2=12n2=12 with a
mean of M2=66.9M2=66.9 and a standard deviation of SD2=9.3SD2=9.3
from the second population.
What is the critical value for this test? (Report answer accurate
to three decimal places.)
critical value = ±±
What is the test statistic for this sample? (Report answer accurate
to three decimal places.)
test statistic =
The test statistic is...
This test statistic leads to a decision to...
As such, the final conclusion is that...
1) critical value for this test =-/+ 2.074
2) test statistic =2.595
3) The test statistic is in the critical region
4) This test statistic leads to a decision to reject the null
5) The sample data support the claim that the first population mean is not equal to the second population mean.
You wish to test the following claim (H1H1) at a significance level of α=0.05α=0.05. Ho:μ1=μ2Ho:μ1=μ2 H1:μ1≠μ2H1:μ1≠μ2...
You wish to test the following claim (H1) at a significance level of α=0.005. Ho:μ1=μ2 H1:μ1>μ2 You obtain a sample of size n1=117 with a mean of M1=62.8 and a standard deviation of SD1=10.2 from the first population. You obtain a sample of size n2=114 with a mean of M2=57.5 and a standard deviation of SD2=12.8mfrom the second population. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = What is the...
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You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05. Ho:μ1=μ2Ho:μ1=μ2 Ha:μ1<μ2Ha:μ1<μ2You believe both populations are normally distributed, but you do not know the standard deviations for either. You should use a non-pooled test. You obtain a sample of size n1=16n1=16 with a mean of M1=50.7M1=50.7 and a standard deviation of SD1=7.4SD1=7.4 from the first population. You obtain a sample of size n2=12n2=12 with a mean of M2=53.7M2=53.7 and a standard deviation of SD2=18.2SD2=18.2 from the second population.What is the test statistic for this sample? (Report answer accurate to three decimal...
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