# QNT 275 Week 5 Final Exam

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QNT 275 Week 5 Final Exam

https://zh.scribd.com/document/343514565/Uop-Tutorial

# QNT 275 Week 5 Final Exam

Complete the Final Examination. You are allowed one attempt to complete the examination, which is timed and must be completed in 3 hours. Results are automatically graded and sent to your instructor.

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1

?To make tests of hypotheses about more than two population means, we use the:

?t distribution

?normal distribution

chi-square distribution

analysis of variance distribution

2

?You randomly select two households and observe whether or not they own a telephone answering machine. Which of the following is a simple event?

?At most one of them owns a telephone answering machine.

?At least one of them owns a telephone answering machine.

?Neither of the two owns a telephone answering machine.

?Exactly one of them owns a telephone answering machine.

3

?In a one-way ANOVA, we analyze only one:

?population

?mean

?variable

?sample

4

?The regression model y = A + Bx + e is:

an exact relationship

?a probabilistic model

a nonlinear model

?a deterministic model

5

?For a goodness-of-fit test, the frequencies obtained from the performance of an experiment are the:

?objective frequencies

?observed frequencies

?subjective frequencies

?expected frequencies

6

?The mean of a discrete random variable is the mean of its:

?frequency distribution

second and third quartiles

?percentage distribution

?probability distribution

7

?A researcher wants to test if the mean annual salary of all lawyers in a city is different than \$110,000. The null hypothesis for this example will be that the population mean is:

?greater than to \$110,000

not equal to \$110,000

?equal to \$110,000

?less than to \$110,000

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