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Mathematics, 18.04.2020 03:51 lorreee
Make a decision about the given claim. Use only the rare eventrule, and make subjective estimates to determine whether events are likely. For example, if the claim is that a coin favors heads and sample results consist of 11 heads in 20 flips, conclude that there is not sufficient evidence to support the claim that the coin favors heads (because it is easy to get 11 heads in 20 flips by chance with a fair coin).
Claim: The mean
age
of students in a large
math
class is
greater
than
19
.
A simple random sample of the students has a mean
age
of
19.6
.
Choose the correct answer below.
A.
The sample
is
unusual if the claim is true. The sample
is
unusual if the claim is false. Therefore, there
is
sufficient evidence to support the claim.
B.
The sample
is not
unusual if the claim is true. The sample
is not
unusual if the claim is false. Therefore, there
is not
sufficient evidence to support the claim.
C.
The sample
is not
unusual if the claim is true. The sample
is not
unusual if the claim is false. Therefore, there
is
sufficient evidence to support the claim.
D.
The sample
is
unusual if the claim is true. The sample
is
unusual if the claim is false. Therefore, there
is not
sufficient evidence to support the claim.
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