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Trying to finish an assignment: What happens to the power of the z test when the standard deviation increases? and Is the shape of a sampling distribution always the same as that of the null hypothesis population? Thanks! As the
asked by Cheri on December 27, 2006 
Statistics
What does it mean when a researcher chooses the cutoff in a comparison distribution to be .01? a. It means that to reject the null hypothesis, the result must be higher than a z score of .01 b. It means that to reject the null
asked by Angela on June 10, 2010 
statistics
Use the given information to find the Pvalue. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). 1) Vvith H1: p * 0.733, the
asked by Marc on April 21, 2010 
psychology statistics
15. Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give (a) the Zscore cutoff (or cutoffs) on the comparison distribution at which the null hypothesis
asked by Anonymous on January 14, 2012 
Statistics
are the following statements, Ho:=10 and Ha:equal to or less than, a valid pair of null and alternative hypothesis?assume that in a hypothesis test with null hypothesis Ho : u = 12.0 at a = 0.10, that a value of 16.0 for the
asked by Cynthia on November 19, 2011 
Math (Statistic)
Considered the sampling distribution of a sample mean obtained by random sampling from an infinite population. This population has a distribution that is highly skewed toward the larger values. a) How is the mean of the sampling
asked by Jennifer on February 19, 2007 
Statistics
If my pvalue = .322 and my significant level is .05 , then My Null Hypothesis is rejected and I must accept the Alternative hypothesis My Null Hypothesis is not rejected My Alternative hypothesis becomes the new Null Hypothesis I
asked by John on June 15, 2010 
Statistics
A statistical test is performed, and its Pvalue turns out to be about 3%. Which of the following must be true? Pick all that are correct. The null hypothesis is true. There is about a 3% chance that the null hypothesis is true.
asked by Audrey on August 4, 2013 
statistics
Can any help me how to solve below problem.? I am student and learning OC curve and double sampling plan. Can you someone help me how to understand this concept? A shipment of 1000 items is to be inspected on a sampling basis. The
asked by saran on October 9, 2011 
Statistics
The distribution of cholesterol levels of the residents of a state closely follows the normal curve. Investigators want to test whether the mean cholesterol level of the residents is 200 mg/dL or lower. A simple random sample of
asked by Audrey on August 4, 2013