QNT 561 Final Exam University of Phoenix New Courses
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1. A random sample <strong>of</strong> size 15 is selected from a normal population. The population standard<br />
deviation is unknown. Assume the null hypothesis indicates a two-tailed test and the<br />
researcher decided to use the 0.10 significance level. For what values <strong>of</strong> t will the null<br />
hypothesis not be rejected?<br />
a) To the left <strong>of</strong> -1.645 or to the right <strong>of</strong> 1.645<br />
b) To the left <strong>of</strong> -1.345 or to the right <strong>of</strong> 1.345<br />
c) Between -1.761 and 1.761<br />
d) To the left <strong>of</strong> -1.282 or to the right <strong>of</strong> 1.282<br />
2. Which <strong>of</strong> the following is a characteristic <strong>of</strong> the F distribution?<br />
a) Normally distributed<br />
b) Negatively skewed<br />
c) Equal to the t-distribution<br />
d) Positively skewed<br />
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