x = 1280
s = 37.2887
A.D.
yr
(b) Assuming the tree-ring dates in this excavation area follow a distribution that is approximately normal, does this information indicate that th
ring dates in the area is different from (either higher or lower than) 1296 A.D.? Use a 1% level of significance.
(i) What is the level of significance?
0.01
State the null and alternate hypotheses. (Enter != for ? as needed.)
$H_0: \mu = 1296$
$H_1: \mu \ne 1296$
(ii) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution.
We'll use the Student's t, since we assume that x has a normal distribution and o is known.
We'll use the standard normal, since we assume that x has a normal distribution and o is unknown.
We'll use the Student's t, since we assume that x has a normal distribution and o is unknown.
We'll use the standard normal, since we assume that x has a normal distribution and o is known.
Compute the appropriate sampling distribution value of the sample test statistic. (Round your answer to two decimal places.)
0.122