Question
A simple random sample of 16 observations is derived from a normally distributed population with a...
A simple random sample of 16 observations is derived from a
normally distributed population with a known standard deviation of
2.5. [You may find it useful to reference the z
table.]
a. Is the condition that X−X− is normally distributed
satisfied?
-
Yes
-
No
b. Compute the margin of error with 95%
confidence. (Round intermediate calculations to at least 4
decimal places. Round "z" value to 3 decimal places and
final answer to 2 decimal places.)
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