= sin O - cos O - (sin^2 O + cos^2 O + 2 sin O cos O)
= sin O - cos O - ( 1 + sin 2O)
= sin O + cos O - sin 2O - 1
Answer: .......................
Step-by-step explanation:
Answer: A. 10% of the time, the population parameter will lie outside of the interval.
Step-by-step explanation:
If we have confidence interval is that we are certain that it contains the true population parameter in it.
Similarly , if we have a 90% confidence interval for a population parameter, then we are 90% certain that it contains the true population parameter in it.
i.e. 10% not certain that it contains the true population parameter in it.
i.e. 10% of the time, the population parameter will lie outside of the interval.