MATLAB: A Practical Introduction to Programming and Problem Solving
5th Edition
ISBN: 9780128154793
Author: Stormy Attaway Ph.D. Boston University
Publisher: Elsevier Science
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Chapter 7, Problem 13E
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Question 9
<
0/2 pts 299 Details
cor
The numbers of false fire alarms were counted each month at a number of sites. The results are given in
the following table.
Month
January
Number of False Alarms
31
February
37
March
39
April
41
May
44
June
29
July
45
August
40
September
44
October
27
35
29
November
December
Click Download CSV to download csv file of data or copy/paste the data into Excel. After downloading the
file, you may want to save it as an Excel Workbook.
Test the hypothesis that false alarms are equally likely to occur in any month. Use 10% level
of significance.
Procedure: Select an answer
What is the total count (that is, total number of false alarms counted):
If false alarms are equally likely to occur in any month of 12 months, then what is the expected number
of false alarms to occur in any month from the total false alarms of the year (Rounded to 3 or more decimal
places):
Assumptions: (select everything that applies)
Random sample
Normal populations
Observed count for…
or
Search
Do the needs of patients in the emergency room differ for those who come by car vs. those by ambulance?
Of the randomly selected emergency room patients who came by car 62 had an injury, 48 were sick, 49 had
heart problems and 53 had other needs.
Of the randomly selected emergency room patients who came by ambulance 48 had an injury, 29 were sick,
52 had heart problems and 28 had other needs.
Conduct the appropriate hypothesis test using an a = 0.10 level of significance.
a. What is the correct statistical test to use?
O Goodness-of-Fit
O Homogeneity
O Independence
O Paired t-test
b. What are the null and alternative hypotheses?
Ho:
O Means of transportation to the emergency room and emergency room needs are independent.
O Means of transportation to the emergency room and emergency room needs are dependent.
O The distribution of emergency room needs for patients who come by car is not the same as it is
for patients who come by ambulance.
O The distribution of emergency room…
Diagonalize the following matrix. The real eigenvalues are given to the right of the matrix.
4 -42
22 2λ=2,4
4-86
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A.
200
For P =
D=
0 4 0
0 0 4
(Simplify your answer.)
B.
200
For P =
D=
0 20
004
(Simplify your answer.)
C. The matrix cannot be diagonalized.
Chapter 7 Solutions
MATLAB: A Practical Introduction to Programming and Problem Solving
Chapter 7, Problem 7.1PChapter 7, Problem 7.2PChapter 7, Problem 7.3PChapter 7, Problem 7.4PChapter 7, Problem 7.5PChapter 7, Problem 7.6PChapter 7, Problem 1EChapter 7, Problem 2EChapter 7, Problem 3EChapter 7, Problem 4E
Chapter 7, Problem 5EChapter 7, Problem 6EChapter 7, Problem 7EChapter 7, Problem 8EChapter 7, Problem 9EChapter 7, Problem 10EChapter 7, Problem 11EChapter 7, Problem 12EChapter 7, Problem 13EChapter 7, Problem 14EChapter 7, Problem 15EChapter 7, Problem 16EChapter 7, Problem 17EChapter 7, Problem 18EChapter 7, Problem 19EChapter 7, Problem 20EChapter 7, Problem 21EChapter 7, Problem 22EChapter 7, Problem 23EChapter 7, Problem 24EChapter 7, Problem 25EChapter 7, Problem 26EChapter 7, Problem 27EChapter 7, Problem 28EChapter 7, Problem 29EChapter 7, Problem 30EChapter 7, Problem 31EChapter 7, Problem 32EChapter 7, Problem 33EChapter 7, Problem 34EChapter 7, Problem 35EChapter 7, Problem 36EChapter 7, Problem 37E
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