STATISTICS- STA 2023 FINAL EXAM REVIEW- Statistics 2023 Final Exam Questions and Answers

Spring STA 2023 FINAL EXAM
2020 REVIEW




Vocabulary
12 Similar Vocabulary questions will be
Question: 1
Question: Given sets E = {1,2,4,6} and O = {1,7,9} and the universal set U =
{1,2,3,4,5,6,7,8,9}. Find E U O,
Options:
a){1} b)
{2,4,6,7,9}
c){1,2,4,6,7,9}
d){4,6,7,9}
Correct Answer: c
Question: Given sets E = {1,2,4,6} and O = {1,7,9} and the universal set U =
Question: 2
{1,2,3,4,5,6,7,8,9}. Find E'.
Options:
a){1,7,9}
b){2,4,6} c)
{1,2,3,4,5,6,7,8,9} d)
{3,5,7,8,9}
Correct Answer: d

Question#: 3
Question: A manufacturing company produces digital cameras and claim that their
production may be 3% defective. A video company, when purchasing a batch of 2000
cameras, applies the following sample plan: They randomly select 20 cameras and
accept the whole batch if there are no less than 18 working cameras. What is the
correct probability statement for the company to accept the whole batch?
Options:
a)1- P(r >
18) b)P(r <
18) c)P(r
>=18) d)P(r
<=18)
Correct Answer: c




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,Spring STA 2023 FINAL EXAM
2020 REVIEW



Question#: 4
Question: If repetition of digits is not allowed, how many different 5-digit codes are
possible with the condition that the first digit cannot be zero?
Options:
a)27216
b)3024
0
c)1837
0
d)9000
0
Correct Answer: a
Question#: 5
Question: Null hypothesis statement is denoted by?
Options:
a) Ho
b) H1
c) Hb
d) H
Correct Answer: a
Question#: 6
Question: Alternate hypothesis statement is denoted by?
Options:
a) Ho
b) H1
c) Hb
d) H
Correct Answer: b
Question#: 7
Question: Null hypothesis statement will always contain?
Options:
a) Not Equal to
b) Greater than
c) Lesser than
d) Equal to
Correct Answer: d




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,Spring STA 2023 FINAL EXAM
2020 REVIEW



Question#: 8
Question: Alternate hypothesis statement will never contain?
Options:
a) Not Equal to
b) Greater than
c) Lesser than
d) Equal to
Correct Answer: d

Question#: 9
Question: In a hypothesis testing problm, H0 represents?
Options:
a) Alternative hypothesis
b) Null hypothesis
c) Hypothesis testing
d) Sample
Correct Answer: b
Question#: 10
Question: Key words such as "more than", "greater than", "higher than", or "larger
than" are indicative of preforming what tail test?
Options:
a) Significance Test
b) Two-tail test
c) Right-tail test
d) Left-tail test
Correct Answer: c

Question#: 11
Question: Key words such as "less than", "lower than", or "fewer than" are indicative
of preforing what tail test?
Options:
a) Significance Test
b) Two-tail test
c) Right-tail test
d) Left-tail test
Correct Answer: d




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, Spring STA 2023 FINAL EXAM
2020 REVIEW



Question#: 12
Question: Key words such as "different than", "not equal" or "two-way" are
indicative of preforming what tail test?
Options:
a) Significance Test
b) Two-tail test
c) Right-tail test
d) Left-tail test
Correct Answer: b

Question#: 13
Question: What is the complement of level of confidence is known as?
Options:
a) Alternative confidence levels
b) Levels of confidence
c) Testing parameters
d) Levels of significance
Correct Answer: d

Question#: 14
Question: We reject the null hypothesis in favor of the alternative hypothesis only
with? Options:
a) Non significant evidence
b) Not really significant evidence
c) Significant evidence
d) Almost significant evidence
Correct Answer: c




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