Answer:
I think it is A but not 100% sure.
Step-by-step explanation:
Answer:
Use the normal distribution if the population standard deviation is known.
Use the student's t distribution when the population standard deviation is unknown.
Explanation:
A mound-shaped distribution refers to the normal distribution.
A good sample size for testing against the normal distribution should be
n >= 30.
The condition for the sample size is satisfied.
However, we are not given the population standard deviation, therefore it is assumed to be unknown.
Therefore the student's t distribution should be used.
True! Because T is the defining letter of the line, so it would be true!
Hope this helps!! :)
Amount after 3 years = 4000( 1 + 0.04)^3 = $4,499.46 answer
Answer: its option 3 I just did the test right now
Step-by-step explanation:
