If we have a 90% confidence interval for a population parameter, then a. 10% of the time, the population parameter will lie outside of the interval. b. 10% of the time, the population parameter will be lower than the lcl. c. 10% of the time, the population parameter will be higher than the ucl. d. all of the above will hold.

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.

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c

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step-by-step explanation: