Question
In: Statistics and Probability
An instructor who taught two sections of engineering statistics last term, the first with 25 students...
An instructor who taught two sections of engineering statistics
last term, the first with 25 students and the second with 30,
decided to assign a term project. After all projects had been
turned in, the instructor randomly ordered them before grading.
Consider the first 15 graded projects.
(b) What is the probability that at least 10 of these are from the
second section? (Round your answer to four decimal places.)
(c) What is the probability that at least 10 of these are from the
same section? (Round your answer to four decimal places.)
(d) What are the mean value and standard deviation of the number
among these 15 that are from the second section? (Round your mean
to the nearest whole number and your standard deviation to three
decimal places.)
| mean | projects |
| standard deviation | projects |
(e) What are the mean value and standard deviation of the number of
projects not among these first 15 that are from the second section?
(Round your mean to the nearest whole number and your standard
deviation to three decimal places.)
| mean | projects |
| standard deviation | projects |
Please answer parts B, C, D, and E
Solutions
orchestra answered 2 years agoRelated Solutions
An instructor who taught two sections of engineering statistics last term, the first with 25 students...
An instructor who taught two sections of engineering statistics
last term, the first with 25 students and the second with 35,
decided to assign a term project. After all projects had been
turned in, the instructor randomly ordered them before grading.
Consider the first 15 graded projects.
(a) What is the probability that exactly 10 of these are from
the second section? (Round your answer to four decimal
places.)
(b) What is the probability that at least 10 of these...
An instructor who taught two sections of engineering statistics last term, the first with 25 students...
An instructor who taught two sections of engineering statistics
last term, the first with 25 students and the second with 35,
decided to assign a term project. After all projects had been
turned in, the instructor randomly ordered them before grading.
Consider the first 15 graded projects.
(a) What is the probability that exactly 10 of these are from
the second section? (Round your answer to four decimal
places.)
(b) What is the probability that at least 10 of these...
An instructor who taught two sections of engineering statistics last term, the first with 25 students...
An instructor who taught two sections of engineering statistics
last term, the first with 25 students and the second with 30,
decided to assign a term project. After all projects had been
turned in, the instructor randomly ordered them before grading.
Consider the first 15 graded projects.
(a) What is the probability that exactly 13 of these are from
the second section? (Round your answer to four decimal
places.)
(b) What is the probability that exactly 9 of these are...
An instructor who taught two sections of engineering statistics last term (the first with 20 students...
An instructor who taught two sections of engineering statistics
last term (the first with 20 students and the second with 30),
decided to assign a term project. After all projects had been
turned in, the instructor randomly ordered them before grading.
Consider the first 15 graded projects.
a. What is the probability that exactly 10 of these are from the
second section? b. What is the probability that at least 10 of
these are from the second section?
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An instructor who taught two sections of MTH132, with 20 and 30
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2. What is the chance that at least 10 of them are from the 2nd
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3. What is the chance that at least 10 of them are from the same
section?
Two sections of a class in statistics were taught by two different methods. Students’ scores on...
Two sections of a class in statistics were taught by two
different methods. Students’ scores on a standardized test are
shown in Table 5.12 . Do the results present evidence of a
difference in the effectiveness of the two methods? (Use α
= 0.05.)
Class A: 74, 97, 79, 88, 78, 93, 76, 75, 82, 86, 100, 94
Class B: 78, 92, 94, 78, 71, 85, 70, 79, 76, 93, 82, 69, 84
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68.4
65
65
63.9
68.4
64.3
66.5
61.9
69
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