I don't know I haven't been on math for a 8 days
2 answers:
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Hopefully, this helps you answer the question. You can ignore the Q1 and Q2.
Answer:
The 95% confidence interval for mean compressive strength is:
Step-by-step explanation:
We have a sample of n=12 specimens, with sample mean=3259.9 and sample standard deviation = 35.57.
We know the population is normally distributed.
For a 95% confidence interval and df=n-1=11, the t-statistic is t=2.201.
Then, the CI can be expressed as:
Answer:
He will bike <u>26.87 miles</u>.
Step-by-step explanation:
Given:
Jordan bikes at a speed of 8 2/3 mph.
Now, to find the distance he will bike in 3 hours and 6 minutes.
<u><em>Speed</em></u> =
<u><em>Time</em></u> = 3 hours and 6 minutes
=
As, 60 minutes = 1 hour.
=
So, to get the distance we put formula:
Therefore, he will bike 26.87 miles.