Answer:
Step-by-step explanation:
The confidence interval for the population mean x can be calculated as:
Where x' is the sample mean, s is the population standard deviation, n is the sample size and 
is the z-score that let a proportion of 
on the right tail.
is calculated as: 100%-99%=1%
So, 
Finally, replacing the values of x' by 308, s by 17, n by 15 and by 2.576, we get that the confidence interval is:
1a (you don’t necessarily need to include the 1, so you can just put “a” if you’d like).
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Answer: c=38.89
b=29.79
<A=40
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
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Answer:
Step-by-step explanation:
Here,
f(x) = y
or , swapping x with y
now to solve for y we get
now we put f inverse x instead of y
I am done.
Answer:
4.428 hours
Step-by-step explanation:
If the learning rate is 0.81, the slope of the learning curve is:
The time it takes to produce the n-th unit is:
If T1 = 8 hours, the time required to produce the seventh unit will be:
It will take roughly 4.428 hours.
