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The following hypotheses are given.
H0: ρ ≤ 0H1: ρ > 0
A random sample of 12 paired observations indicated a correlation of .32.
1) State the decision rule for .05 significance level. (Round your answer to 3 decimal places.)
Reject Ho if t >
2) Compute the value of the test statistic. (Round your answer to 2 decimal places.)
Value of the test statistic
Create a hypothesis and perform a series of tests to determine if there is any fundamental difference in the findings.
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At a 0.05 level of significance, does this data show that 2 year college students and private unversity students work an equivalent amount of time?
For the last 18 review periods the average sales figure has dropped to $11,500 with a standard deviation of $4,000. Management is concerned. Perform a hypothesis test to determine if this change in sales is a potential problem.
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New study is to use 90% confidence level. Estimate is to be within 1 percent of population proportion. Determine the essential sample size?
Given that Z is a standard normal random variable. What is the value of Z if the area to the left of Z is 0.9382?
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Carefully define a standard normal distribution. Why does a researcher want to go from a normal distribution to a standard normal distribution? Explain.
Finding the probability of each event in a group of events of different possibility
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