Listed below are the numbers of years that archbishops and monarchs in a certain country lived after their election or coronation. Assume that the two samples are independent simple random samples...



Listed below are the numbers of years that archbishops and monarchs in a certain country lived after their election or coronation. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Use a
0.05

significance level to test the claim that the mean longevity for archbishops is less than the mean for monarchs after coronation. All measurements are in years.



















































Archbishops


15


13


15


12


17


2


18


18


10


14


14


10




15


13


11


14


14


16


7


15


10


5


15


18


Monarchs


12


18


14


14


16


17


15


15


17


16


16





Click the icon to view the table of longevities of archbishops and monarchs.




What are the null and alternative​ hypotheses? Assume that population 1 consists of the longevity of archbishops and population 2 consists of the longevity of monarchs.







A.



H0​:

μ1≤μ2



H1​:

μ1>μ2







B.



H0​:

μ1=μ2



H1​:

μ1≠μ2







C.



H0​:

μ1≠μ2



H1​:

μ1>μ2







D.



H0​:

μ1=μ2



H1​:

μ1<>






The test statistic is
nothing.

​(Round to two decimal places as​ needed.)

The​ P-value is
nothing.

​(Round to three decimal places as​ needed.)

State the conclusion for the test.







A.



Reject

the null hypothesis. There
is not

sufficient evidence to support the claim that archbishops have lower mean longevity than monarchs.






B.



Reject

the null hypothesis. There
is

sufficient evidence to support the claim that archbishops have lower mean longevity than monarchs.






C.



Fail to reject

the null hypothesis. There
is not

sufficient evidence to support the claim that archbishops have lower mean longevity than monarchs.






D.



Fail to reject

the null hypothesis. There
is

sufficient evidence to support the claim that archbishops have lower mean longevity than monarchs.






Jun 07, 2022
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