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Statistics question?
Find Critical Values, find the critical z values, assume that normal distribution applies.
∞ = 0.005; H1 is p ≠ 0.20
Can anyone help me out with this?
Thanks,
Jennifer
1 Answer
- 1 decade agoFavorite Answer
This kind of seems like half of a question. But if alpha = 0.005, then look on the normal dist chart and find where P = 0.0025 and 0.9975 and these will be your critical z-values. To find the critical values, you need the st.dev. and apply the z-values to this. I can only guess that by p=0.2 you have a Bernoulli dist., so st.dev. = sqrt (.2*.8) = .4. However with a single sample you can't possibly reject your null hypothesis, so I'm guessing you're taking multiple samples, in which case you need to work out your st.dev. for however many samples are taken.
