BUS 302L – Statistics Exam Questions
and Answers 100% Pass
e. none of the above - ✔✔Which is the following is correct?
a. The probability of a type I error is β.
b. The probability of a type II error is (1 - β).
c. The probability of a type II error is α.
d. The probability of a type I error is (1 - α).
e. none of the above
d. all the lenses sold by the manufacturer. - ✔✔A manufacturer of contact lenses is
studying the curvature of the lenses it sells. In particular, the last 500
lenses sold had an average curvature of 0.5. The population is
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,a. the 500 lenses.
b. 0.5.
c. the lenses sold today.
d. all the lenses sold by the manufacturer.
e. none of the above
a. one standard deviation - ✔✔According to the empirical rule, the bell or mound
shaped distribution will have approximately 68% of the
data within what number of standard deviations of the mean?
a. one standard deviation
b. two standard deviations
c. three standard deviations
d. four standard deviations
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,e. none of the above
c. binomial - ✔✔A random sample of 5 mosquitos is sampled. The number of mosquitos
carrying the West Nile Virus in the
sample is an example of which random variable?
a. normal
b. student's t
c. binomial
d. uniform
e. none of the above
a. the age of a typical voter. - ✔✔A political scientist is studying voters in California. It
is appropriate for him to use a mean to describe
a. the age of a typical voter.
b. the party affiliation of a typical voter.
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, c. the sex of a typical voter.
d. the county of residence of a typical voter.
e. none of the above
a. the expected value - ✔✔The long-run average of a random variable is
a. the expected value
b. the coefficient of determination
c. the standard deviation
d. the mode
e. none of the above
e. none of the above - ✔✔A manufacturer of women's blouses has noticed that 80% of
their blouses have no flaws, 15% of their blouses have one flaw, and 5% have two flaws.
If you buy a new blouse from this manufacturer, the expected number of flaws will be
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and Answers 100% Pass
e. none of the above - ✔✔Which is the following is correct?
a. The probability of a type I error is β.
b. The probability of a type II error is (1 - β).
c. The probability of a type II error is α.
d. The probability of a type I error is (1 - α).
e. none of the above
d. all the lenses sold by the manufacturer. - ✔✔A manufacturer of contact lenses is
studying the curvature of the lenses it sells. In particular, the last 500
lenses sold had an average curvature of 0.5. The population is
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 1
,a. the 500 lenses.
b. 0.5.
c. the lenses sold today.
d. all the lenses sold by the manufacturer.
e. none of the above
a. one standard deviation - ✔✔According to the empirical rule, the bell or mound
shaped distribution will have approximately 68% of the
data within what number of standard deviations of the mean?
a. one standard deviation
b. two standard deviations
c. three standard deviations
d. four standard deviations
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,e. none of the above
c. binomial - ✔✔A random sample of 5 mosquitos is sampled. The number of mosquitos
carrying the West Nile Virus in the
sample is an example of which random variable?
a. normal
b. student's t
c. binomial
d. uniform
e. none of the above
a. the age of a typical voter. - ✔✔A political scientist is studying voters in California. It
is appropriate for him to use a mean to describe
a. the age of a typical voter.
b. the party affiliation of a typical voter.
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, c. the sex of a typical voter.
d. the county of residence of a typical voter.
e. none of the above
a. the expected value - ✔✔The long-run average of a random variable is
a. the expected value
b. the coefficient of determination
c. the standard deviation
d. the mode
e. none of the above
e. none of the above - ✔✔A manufacturer of women's blouses has noticed that 80% of
their blouses have no flaws, 15% of their blouses have one flaw, and 5% have two flaws.
If you buy a new blouse from this manufacturer, the expected number of flaws will be
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