# stats

find critical z values, in each case assume normal distribution applies.

left tailed test. Alpha= 0.05

Can someone please explain how to do this?

1. Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to each Z score. Compare to .05.

posted by PsyDAG

## Similar Questions

1. ### Statistics

Find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses re made and each question has 6 possible answers. My answer is 1/36 Assume that the data has a normal distribution and
2. ### Math

I need help please. Find the critical z values. Assume that the normal distribution applies. Right-Tailed test; x=0.03. z=?
3. ### Stat

α=0.05 for a two-tailed test. Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. Is the correct answer +/- 1.96?
4. ### statistics

20. Explain how the power of a hypothesis test is influenced by each of the following. Assume that all other factors are held constant. a. Increasing the alpha level from .01 to .05. b. Changing from a one-tailed test to a
5. ### statistics

10. Explain how the power of a hypothesis test is influenced by each of the following. Assume that all other factors are held constant. a. Increasing the alpha level from .01 to .05. b. Changing from a one-tailed test to a
6. ### statistics

Can someone please explain to me the procedures for getting an answer to the questions. Step by step would be great since I'm very confused. I know it's probably simple. * Numerous studies have demonstrated that listening to music
7. ### statistics

Using the z-table (Table E) find the critical value (or values) for a = .018 left tailed test.
8. ### Statistics

Hello...I need help with the following question, I have the answer but am not sure how to solve it. Any help would be greatly appreciated. Thank you What is the 'z' value assuming the normal distribution applies in a right-tailed
9. ### Stats II

I have a question on a quiz and I don't even know where to begin on figuring out the question... please help: Measurements on the percentave of enrichment of 12 fuel rods used in a nuclear reactor were reported as follows: 3.11
10. ### statistics

Use Excel to find the p-value for each test statistic.a. Right-tailed test, t = +1.677, n = 13 b. Left-tailed test, t = −2.107, n = 5 c. Two-tailed test,t = −1.865, n = 34

More Similar Questions