QNT 561 Final Exam University of Phoenix New Courses
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9. If an ANOVA test is conducted and the null hypothesis is rejected, what does this indicate?<br />
a) The p-value is less than a.<br />
b) All population means are different.<br />
c) At least one pair <strong>of</strong> population means is different.<br />
d) The population means are equal.<br />
10. A random sample <strong>of</strong> 20 items is selected from a population. When computing a confidence<br />
interval for the population mean, what number <strong>of</strong> degrees <strong>of</strong> freedom should be used to<br />
determine the appropriate t-value?<br />
a) 25<br />
b) 21<br />
c) 19<br />
d) 20<br />
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