A circular swimming pool has a radius of 28 feet there’s a path all the way around the pool dad 4 feet wide inference is going t
1 answer:
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The first choice gives you the same result. The factor of 5 can be removed to the outside of the summation symbol.
Answer:
(25.732,30.868)
Step-by-step explanation:
Given that in a random sample of 42 people, the mean body mass index (BMI) was 28.3 and the standard deviation was 6.09.
Since only sample std deviation is known we can use only t distribution
Std error =
t critical for 99% two tailed
Margin of error
Confidence interval lower bound =
Upper bound =