Question
In: Statistics and Probability
Year Name MinPressure_before Gender_MF Category alldeaths 1950 Easy 958 1 3 2 1950 King 955 0...
Year Name MinPressure_before Gender_MF Category alldeaths
1950 Easy 958 1 3 2
1950 King 955 0 3 4
1952 Able 985 0 1 3
1953 Barbara 987 1 1 1
1953 Florence 985 1 1 0
1954 Carol 960 1 3 60
1954 Edna 954 1 3 20
1954 Hazel 938 1 4 20
1955 Connie 962 1 3 0
1955 Diane 987 1 1 200
1955 Ione 960 0 3 7
1956 Flossy 975 1 2 15
1958 Helene 946 1 3 1
1959 Debra 984 1 1 0
1959 Gracie 950 1 3 22
1960 Donna 930 1 4 50
1960 Ethel 981 1 1 0
1961 Carla 931 1 4 46
1963 Cindy 996 1 1 3
1964 Cleo 968 1 2 3
1964 Dora 966 1 2 5
1964 Hilda 950 1 3 37
1964 Isbell 974 1 2 3
1965 Betsy 948 1 3 75
1966 Alma 982 1 2 6
1966 Inez 983 1 1 3
1967 Beulah 950 1 3 15
1968 Gladys 977 1 2 3
1969 Camille 909 1 5 256
1970 Celia 945 1 3 22
1971 Edith 978 1 2 0
1971 Fern 979 1 1 2
1971 Ginger 995 1 1 0
1972 Agnes 980 1 1 117
1974 Carmen 952 1 3 1
1975 Eloise 955 1 3 21
1976 Belle 980 1 1 5
1977 Babe 995 1 1 0
1979 Bob 986 0 1 1
1979 David 970 0 2 15
1979 Frederic 946 0 3 5
1980 Allen 945 0 3 2
1983 Alicia 962 1 3 21
1984 Diana 949 1 2 3
1985 Bob 1002 0 1 0
1985 Danny 987 0 1 1
1985 Elena 959 1 3 4
1985 Gloria 942 1 3 8
1985 Juan 971 0 1 12
1985 Kate 967 1 2 5
1986 Bonnie 990 1 1 3
1986 Charley 990 0 1 5
1987 Floyd 993 0 1 0
1988 Florence 984 1 1 1
1989 Chantal 986 1 1 13
1989 Hugo 934 0 4 21
1989 Jerry 983 0 1 3
1991 Bob 962 0 2 15
1992 Andrew 922 0 5 62
1993 Emily 960 1 3 3
1995 Erin 973 1 2 6
1995 Opal 942 1 3 9
1996 Bertha 974 1 2 8
1996 Fran 954 1 3 26
1997 Danny 984 0 1 10
1998 Bonnie 964 1 2 3
1998 Earl 987 0 1 3
1998 Georges 964 0 2 1
1999 Bret 951 0 3 0
1999 Floyd 956 0 2 56
1999 Irene 987 1 1 8
2002 Lili 963 1 1 2
2003 Claudette 979 1 1 3
2003 Isabel 957 1 2 51
2004 Alex 972 0 1 1
2004 Charley 941 0 4 10
2004 Frances 960 1 2 7
2004 Gaston 985 0 1 8
2004 Ivan 946 0 3 25
2004 Jeanne 950 1 3 5
2005 Cindy 991 1 1 1
2005 Dennis 946 0 3 15
2005 Ophelia 982 1 1 1
2005 Rita 937 1 3 62
2005 Wilma 950 1 3 5
2005 Katrina 902 1 3 1833
2007 Humberto 985 0 1 1
2008 Dolly 963 1 1 1
2008 Gustav 951 0 2 52
2008 Ike 935 0 2 84
2011 Irene 952 1 1 41
2012 Isaac 965 0 1 5
2012 Sandy 945 1 2 159
Open Hurricane data.
SETUP: Is it reasonable to assume that average hurricane pressure for category 4 is different from that of category 1? Given the data, your job is to check if this assertion is indeed reasonable or not. HINT: Read Lecture 24.
19. What would be the correct Null-Hypothesis?
- a. Data related to two different categories should not be related.
- b. The population averages are equal.
- c. The slope of the regression line is equal to zero.
- d. None of these.
20. The P-value is 3.33E-09. What can be statistically concluded?
- a. We reject the Null Hypothesis.
- b. We accept the Null Hypothesis.
- c. We cannot reject the Null Hypothesis.
- d. None of these.
21. Write a one-line additional comment.
- a. We cannot conclude that data related to two different hurricane categories are related.
- b. We are confident that hurricanes with category 4 has different pressure than those of category 1.
- c. We cannot conclude that hurricanes with category 4 has lower pressure than those of category 1.
- d. None of these.
Solutions
Expert Solution
Step 1: Put the data as shown below
Step 2 : Filter category 4 hurricane and find the mean and standard deviation as shown below.
Step 3 Filter category 1 hurricane and find the mean and standard deviation as shown below.
Hypothesis testing.
Let sample 1 be category 4 hurricance
Let sample 2 be category 1 hurricance.
Conclusion
: Yes there is sufficient evidence to support that
average hurricane pressure for category 4 is different from that of
category 1
19. What would be the correct
Null-Hypothesis?
b. The population averages are equal.
20. The P-value is 3.33E-09. What can be statistically
concluded?
a. We reject the Null Hypothesis.
.
21. Write a one-line additional comment.
b. We are confident that hurricanes with category 4 has different
pressure than those of category 1.
orchestra answered 3 years agoRelated Solutions
Year Name MinPressure_before Gender_MF Category alldeaths 1950 Easy 958 1 3 2 1950 King 955 0...
Year Name MinPressure_before Gender_MF Category alldeaths
1950 Easy 958 1 3 2
1950 King 955 0 3 4
1952 Able 985 0 1 3
1953 Barbara 987 1 1 1
1953 Florence 985 1 1 0
1954 Carol 960 1 3 60
1954 Edna 954 1 3 20
1954 Hazel 938 1 4 20
1955 Connie 962 1 3 0
1955 Diane 987 1 1 200
1955 Ione 960 0 3 7
1956 Flossy 975 1 2 15
1958 Helene...
exampleInput.txt 1 2 3 0 2 3 4 0 1 3 5 0 1 2 6...
exampleInput.txt
1 2 3
0 2 3 4
0 1 3 5
0 1 2 6
1 5 6 8
2 4 6 7
3 4 5 9 10
5 8 9
4 7 9
6 7 8
6
How can I detect when 'cin' starts reading from a new line. The
amount of numbers in each row is unknown. I need them in type 'int'
to use the data.
Project Wind Power Year 0 Year 1 Year 2 Year 3 Costs $6,000,000 $4,000,000 $0 $0...
Project Wind Power
Year 0
Year 1
Year 2
Year 3
Costs
$6,000,000
$4,000,000
$0
$0
Benefits
$18,000,000
$15,000,000
$12,000,000
$12,000,000
Project Hydroelectric power
Year 0
Year 1
Year 2
Year 3
Costs
$4,000,000
$2,000,000
$1,000,000
$0
Benefits
$10,000,000
$14,000,000
$15,000,000
$16,000,000
If the interest rate is 3%, which project would you choose and
why? Show your work using excel (15 points)
If the interest rate is 15%, which project would you choose and
why? Show your work using excel...
0. 0. 0. 0.0. 0. 0. 0. 0. 1. 1. 1. 1. 1. 1. 2. 2. 2. 3. 4.
0. 0. 0. 0.0. 0. 0. 0. 0. 1. 1. 1. 1. 1. 1. 2. 2. 2.
3. 4.
A.)MEAN –
B.)MEDIAN -
C.)MODE -
D.)STANDARD DEVIATION –
E.)5 NUMBER SUMMARY –
F.)BOX AND WHISKERS PLOT –
G.) OUTLIERS-
0. 0. 0. 0.0. 0. 0. 0. 0. 1. 1. 1. 1. 1. 1. 2. 2. 2. 3. 4.
0. 0. 0. 0.0. 0. 0. 0. 0. 1. 1. 1. 1. 1. 1. 2. 2. 2.
3. 4.
A.)5 NUMBER SUMMARY –
B.)BOX AND WHISKERS PLOT –
C.) OUTLIERS-
?" + 3?′ + 2? = ????, ?(0) = 0, ?′(0) = 2 1) Please solve...
?" + 3?′ + 2? = ????, ?(0) = 0, ?′(0) = 2
1) Please solve using an annihilator
2) Please solve using the Method of Variation of Parameters
Thank you.
A= 1 2 4 0 1 -2 -1 0 1 2 0 3 8 1 4...
A=
1
2
4
0
1
-2
-1
0
1
2
0
3
8
1
4
. Let W denote the row space for A.
(a) Find an orthonormal basis for W and for W⊥.
(b) Compute projW⊥(1 1 1 1 1 ).
eigenvalues of the matrix A = [1 3 0, 3 ?2 ?1, 0 ?1 1] are...
eigenvalues of the matrix A = [1 3 0, 3 ?2 ?1, 0 ?1 1] are 1, ?4
and 3. express the equation of the surface x^2 ? 2y^2 + z^2 + 6xy ?
2yz = 16. How should i determine the order of the coefficient in
the form X^2/A+Y^2/B+Z^2/C=1?
Project Year 0 Year 1 Year 2 Year 3 Year 4 A -$ 49 $ 25...
Project Year 0 Year 1 Year 2 Year 3 Year 4
A -$ 49 $ 25 $ 22 $ 22 $ 15
B -$ 101 $ 19 $ 39 $ 51 $ 61
a. What are the IRRs of the two projects?
b. If your discount rate is 4.8%, what are the NPVs of the two
projects?
c. Why do IRR and NPV rank the two projects differently?
Consider the following reference string: 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0,...
Consider the following reference string:
7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1
Find the number of Page Faults with FIFO, Optimal Page
Replacement, and LRU with four free frames that are initially
empty. Which algorithm gives the minimum number of page faults?
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