The null and alternate hypotheses are
The null and alternate hypotheses are: H0 : ?1 = ?2H1 : ?1 ? ?2 A random sample of 10 observations from one population revealed a sample mean of 23 and a sample standard deviation of 3.5. A random sample of 4 observations from another population revealed a sample mean of 27 and a sample standard deviation of 3.6.
At the 0.01 significance level, is there a difference between the population means?
a.State the decision rule. (Negative amounts should be indicated by a minus sign.Round your answer to 3 decimal places.)
The decision rule is to reject H0if t < or t > .
b.Compute the pooled estimate of the population variance. (Round your answer to 3 decimal places.)
Pooled estimate of the population variance
c.Compute the test statistic. (Negative amount should be indicated by a minus sign.Round your answer to 3 decimal places.)
Test statistic
d.State your decision about the null hypothesis. (Click to select)
Reject
Do not reject
H0 .
e.The p-value is (Click to select)
between 0.001 and 0.01
between 0.05 and 0.1
less than 0.001
between 0.1 and 0.2
between 0.01 and 0.1
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The null and alternate hypotheses are
The null and alternate hypotheses are: H0 : ?1 = ?2H1 : ?1 ? ?2 A random sample of 10 observations from one population revealed a sample mean of 23 and a sample standard deviation of 3.5. A random sample of 4 observations from another population revealed a sample mean of 27 and a sample standard deviation of 3.6.
At the 0.01 significance level, is there a difference between the population means?
a.State the decision rule. (Negative amounts should be indicated by a minus sign.Round your answer to 3 decimal places.)
The decision rule is to reject H0if t < or t > .
b.Compute the pooled estimate of the population variance. (Round your answer to 3 decimal places.)
Pooled estimate of the population variance
c.Compute the test statistic. (Negative amount should be indicated by a minus sign.Round your answer to 3 decimal places.)
Test statistic
d.State your decision about the null hypothesis. (Click to select)
Reject
Do not reject
H0 .
e.The p-value is (Click to select)
between 0.001 and 0.01
between 0.05 and 0.1
less than 0.001
between 0.1 and 0.2
between 0.01 and 0.1
Previous answers to this question
This is a preview of an assignment submitted on our website by a student. If you need help with this question or any assignment help, click on the order button below and get started. We guarantee authentic, quality, 100% plagiarism free work or your money back.
Get The Answer