Answer:
within ±1.96 standard deviations of the sample mean
Step-by-step explanation:
A 95% confidence interval is found using the formula C = 1 - α, and some other stuff, but let's focus on that for now. Using the formula:
.95 = 1 - α
α = .05
If α = .05, that means a 2-sided confidence interval would be found using the sample mean and the Z-score Z(subscript α/2), or Z.₀₂₅ because α AKA .05 divided by 2 = .025. From there, you take this either to your calculator or a Z-table (or perhaps you have a chart that lists the common CI values), and see that for the area to be .025 beneath a standard normal curve, your Z value is ±1.96 ("plus or minus" because we're considering a 2-sided confidence interval).
Answer:
I think it is D
Step-by-step explanation:
I am guessing because the stem should be 5 for sure but I am not so sure about my answer it leaves you with one of the choices with the number 5 in them.
I hoped I kinda helped if I didn't I am so sorry :(
Answer:
why such complicated questions.....?
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Step 1: Multiply
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Answer:
