QNT 561 Final Exam Question and Answers
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7. A firm offers routine physical examinations as part of a health<br />
service program for its employees. The exams showed that 8% of the<br />
employees needed corrective shoes, 15% needed major dental work,<br />
<strong>and</strong> 3% needed both corrective shoes <strong>and</strong> major dental work. What is<br />
the probability that an employee selected at r<strong>and</strong>om will need either<br />
corrective shoes or major dental work?<br />
a) .25<br />
b) 1.00<br />
c) .50<br />
d) .20<br />
Complete <strong>Answers</strong> just a click away <strong>QNT</strong> <strong>561</strong> <strong>Final</strong> <strong>Exam</strong><br />
8. When data is collected using a qualitative, nominal variable, what is<br />
true about a frequency distribution that summarizes the data?<br />
a) The upper <strong>and</strong> lower class limits must be calculated.<br />
b) The number of classes is equal to the number of variables plus 2.<br />
c) The “5 to the k rule” can be applied.<br />
d) A pie chart can be used to summarize the data.<br />
<strong>QNT</strong> <strong>561</strong> Complete class <strong>QNT</strong> <strong>561</strong><br />
9. If an ANOVA test is conducted <strong>and</strong> the null hypothesis is rejected,<br />
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 of population means is different.
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