The confidence interval is given by

where

is the sample mean and

is the standard error of the mean. In turn, the standard error of the mean is

where

is sample size.
We have

The endpoints of the confidence interval correspond to the finite endpoints of the rejection region. That is,

for which we can solve for

. We get

which is the critical value for a confidence level of

.
Answer:



Step-by-step explanation:

The decimal forms of some real numbers, like
, terminate, while the decimal forms of other real numbers, like
, do not terminate, but have a repeating pattern. Still other real numbers, like
, have decimal forms that neither terminate nor repeat.
Answer:
d
Step-by-step explanation:
using the distance formula
d = 
with (x₁, y₁ ) = (- 2, 4 ) and (x₂, y₂ ) = (10, 1 )
d = 
= 
= 
= 
= 
≈ 12.369
Answer:
1/48
Step-by-step explanation:
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