Twice means two times something so2a. Four more than means adding for so your answer is 2a+4
Answer:
See the picture
Step-by-step explanation:
The answer is attached
The answer is A and B. I showed my work below. I hope it makes sense. Let me know if you have any questions.
Answer:
The 99% confidence interval for the mean peak power after training is [299.4, 330.6]

Step-by-step explanation:
We have to construct a 99% confidence interval for the mean.
A sample of n=7 males is taken. We know the sample mean = 315 watts and the sample standard deviation = 16 watts.
For a 99% confidence interval, the value of z is z=2.58.
We can calculate the confidence interval as:

The 99% confidence interval for the mean peak power after training is [299.4, 330.6]
Answer:
Step-by-step explanation: