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23. An experimental study is one that _____.<br />
a) attempts to reveal why or how one variable produces changes in another<br />
b) involves manipulation <strong>of</strong> one or more variables to determine the effect on another variable<br />
c) attempts to capture a population's characteristics by making inferences from a sample's<br />
characteristics and testing resulting hypotheses<br />
d) discovers answers to the questions who, what, when, where, or how much<br />
24. The monthly salaries <strong>of</strong> a sample <strong>of</strong> 100 employees were rounded to the nearest $10.<br />
They ranged from a low <strong>of</strong> $1,040 to a high <strong>of</strong> $1,720. If we want to condense the data into<br />
seven classes, what is the most convenient class interval?<br />
a) $200<br />
b) $50<br />
c) $150<br />
d) $100<br />
Find the final exam answers here <strong>QNT</strong> <strong>561</strong> Complete Assignments<br />
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