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Test 1
You scored 32 out of 56
Question 1
Your answer is CORRECT.
Statement of Academic Honesty:
For this exam, I make the following truthful statements:
1. I have not received, I have not given, nor will I give or receive, any assistance to another
student taking this exam, including discussing the exam with students in another section of
the course.
2. I will not plagiarize the work of another person and turn it in as my own.
3. I will not use any non-instructor approved electronic device to assist me on an exam. This
includes calculators.
4. I understand that acts of academic dishonesty may be penalized to the fullest extent
allowed by the University of Houston's student academic conduct code.
a) I certify that I am the person listed on this exam and that the above statements are true.
b) I cannot certify the above statements are true.
Question 2
Your answer is INCORRECT.
A shipment of 18 televisions sets contains 3 defective sets. A hotel purchases 8 of these televisions sets.
What is the probability that the hotel receives at least one of the defective sets?
a) 0.8529
b) 0.0588
c) 0.5588
d) 0.1471
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, Print Test 12/22/20, 1:54 PM
e) 0.4412
f) None of the above.
Question 3
Your answer is INCORRECT.
Rainwater was collected in water collectors at thirty different sites near an industrial basin and the amount
of acidity (pH level) was measured. The mean and standard deviation of the values are 4.9 and 2.1
respectively. When the pH meter was recalibrated back at the laboratory, it was found to be in error. The
error can be corrected by adding 0.2 pH units to all of the values and then multiply the result by 1.4. Find
the mean and standard deviation of the corrected pH measurements.
a) mean = 7.14; standard deviation = 0.42
b) mean = 2.38; standard deviation = 2.94
c) mean = 2.38; standard deviation = 0.42
d) mean = 7.14; standard deviation = 2.94
e) mean = 7.06; standard deviation = 3.14
Question 4
Your answer is CORRECT.
Suppose that 60% of all trucks undergoing a brake inspection at a certain inspection facility pass the
inspection. Consider groups of 17 trucks and let X be the number of trucks in a group that have passed the
inspection. What is the probability that at least 10 but fewer than 13 trucks pass the inspection?
a) 0.60
b) 0.2160
c) 0.5145
d) 0.1839
e) 0.4014
Question 5
Your answer is CORRECT.
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