stats
posted by josh .
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?

stats 
PsyDAG
Z = (scoremean)/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.
Respond to this Question
Similar Questions

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 the … 
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 2.88 … 
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 … 
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 onetailed test to a twotailed … 
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 onetailed test to a twotailed … 
Math
I need help please. Find the critical z values. Assume that the normal distribution applies. RightTailed test; x=0.03. z=? 
Stats
Find the Pvalue for a left tailed hypothesis test with a test statistic of z= 1.77. Decide wether to reject the null if the level of significance is alpha= 0.05. Please help I've tried everything and I can't figure out how to get … 
Stat
α=0.05 for a twotailed 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? 
stats
(a) The test had six multiplechoice items that were scored as correct or incorrect, so the total score was an integer between 0 and 6. Do you think that these data are Normally distributed? 
stats
(a) The test had six multiplechoice items that were scored as correct or incorrect, so the total score was an integer between 0 and 6. Do you think that these data are Normally distributed?