Question
In: Statistics and Probability
The data in TECHPRO.sav, obtained from Business Week’s (June 22, 2006) technology section, represents typical salaries...
The data in TECHPRO.sav, obtained from Business Week’s (June 22, 2006) technology section, represents typical salaries of technology professionals in 13 metropolitan areas for 2003 and 2005. Suppose you want to determine if the mean salary of technology professionals at all US. Metropolitan areas have increased between 2003 and 2005.
(a) Set up the null and alternative hypothesis for the test.
(f) Conduct the appropriate test and provide your conclusion. More specifically, I want you to examine whether the null hypothesis should be rejected by analyzing the data with SPSS. alpha=0.05
DATA SET:
|
AREA |
SAL 2003 |
Sal 2005 |
|
Silicon Valley |
87.7 |
85.9 |
|
New York |
78.6 |
80.3 |
|
Washington, D.C. |
71.4 |
77.4 |
|
Los Angeles |
70.8 |
77.1 |
|
Denver |
73.0 |
77.1 |
|
Boston |
76.3 |
80.1 |
|
Atlanta |
73.6 |
73.2 |
|
Chicago |
71.1 |
73.0 |
|
Philadelphia |
69.5 |
69.8 |
|
San Diego |
69.0 |
77.1 |
|
Seattle |
71.0 |
66.9 |
|
Dallas-Ft. Worth |
73.0 |
71.0 |
|
Detroit |
62.3 |
64.1 |
Solutions
orchestra answered 2 years agoRelated Solutions
The data in TECHPRO.sav, obtained from Business Week’s (June 22, 2006) technology section, represents typical salaries...
The data in TECHPRO.sav, obtained from
Business Week’s (June 22, 2006) technology section,
represents typical salaries of technology professionals in 13
metropolitan areas for 2003 and 2005. Suppose you want to determine
if the mean salary of technology professionals at all US.
Metropolitan areas have increased between 2003 and 2005.
(a) Set up the null and alternative hypothesis for the test.
(f) Conduct the appropriate test and provide your conclusion.
More specifically, I want you to examine whether the...
The data for this section comes from data.world, and represents professional soccer players (data is a...
The data for this section comes from data.world, and represents
professional soccer players (data is a few years old, I think from
2016)
```{r}
players <-
read.csv('https://s3.amazonaws.com/douglas2/data/players.csv',
stringsAsFactors = F)
```
1. Without splitting the club variable, determine how many of
the 7,282 players are Forwards.
```{r}
# Your Solution Here
substring(players$club, 1, 7) [substring(players$club, 1,
7)=='Forwards']
2. Create separate columns for position and club (information
currently found in club column)
```{r}
# Your Solution Here
3. Construct a barplot...
The following data represents the number of children born in individual pregnancies in 1996 and 2006:...
The following data represents the number of children born in
individual pregnancies in 1996 and 2006:
# of children
1996 frequency
2006 frequency
one child
3671455
3971276
twins
100750
137085
triplets
5298
6118
quadruplets
560
355
quintuplets or more
81
67
A. Define the random variable x= number of children born in a
single pregnancy in 1996 and develop a probablity distribution for
the random variable. let x=5 represent quintuplets or more
B. Compute expected value and variance for the...
The following set of data represents the distribution of annual salaries of a random sample of...
The following set of data represents the distribution of annual
salaries of a random sample of
100managers in a large multinational
company:
Salary range (£` 000' )
Managers
20 but under 25
25 but under 30
30 but under 35
35 but under 40
40 but under 45
45 but under 50
5
10
25
35
25
5
Calculate the mean and standard deviation. [5 Marks]
The company chairman claims that the managers in the company
earn on average annual...
Suppose a certain state university's college of business obtained the following results on the salaries of...
Suppose a certain state university's college of business
obtained the following results on the salaries of a recent
graduating class:
Finance Majors
Business Analytics Majors
n1 = 140
n2 = 30
x1 = $48,437
x2 = $55,217
s1 = $19,000
s2 = $10,000
(a)
Formulate hypotheses so that, if the null hypothesis is
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Use α = 0.05. (Let μ1 = the...
1. The Fed kept the Federal Funds rate target unchanged at 5.25% from June 2006 to...
1. The Fed kept the Federal Funds rate target
unchanged at 5.25% from June 2006 to September 2007. However, the
effective Federal Funds rate dropped from 5.41% on August 9th 2007
to 4.54% on August 14th 2007. If the Fed did not take any monetary
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Chapter 22 HW Please answer . This is the b section from a and c. I...
Chapter 22 HW
Please answer . This is the b section from a and c. I send it
but no one has send it back. Thank you.
COMPPRO.05-01.PART.B
Comprehensive Problem 5
Part B:
Note: This section is a continuation from Part
A of the comprehensive problem. Be sure you have completed Part A
before attempting Part B. You may have to refer back to data
presented in Part A and use answers from Part A when completing
this section.
Genuine...
Use this data from the 2006 GSS to determine if there is a significant relationship between...
Use this data from the 2006 GSS to determine if there is a
significant relationship between marital status and happiness. Use
the five step model and describe each step.
MARITAL STATUS
MARRIED
DIVORCED
WIDOWED
SEPARATED
NEVER MARRIED
TOTAL
VERY HAPPY
600
93
63
19
144
919
PRETTY HAPPY
720
304
142
51
459
1676
NOT TOO HAPPY
93
88
51
31
127
390
TOTAL
1412
485
256
101
730
2984
The following property and equipment section was obtained from a recent Abott Laboratories 10-K. Property and...
The following property and equipment section was obtained from a
recent Abott Laboratories 10-K. Property and equipment at cost
Land…………………………………………………………………………………………………… $1,291,500
Buildings……………………………………………………………………………………………….. $2,655,400
Equipment…………………………………………………………………………………………….. $8,813,500
TOTAL COST $12,760,400
Less accumulated depreciation and amortization…………………………………
(6,757,300)
Net Book Value …………………..………………………………………………………………… ..
$6,003,100
In addition depreciation expense was $573,445.
a. Estimate the Property and equipment percent Used up.
b. Estimate the Useful life on average for the depreciable
assets
2: Results obtained from a tension test on a bar of uniform cross section 10 mm...
2:
Results obtained from a tension test on a bar of uniform cross
section 10 mm x 10 mm subjected to an axial pull of 8000 N were
tabulated. The lateral dimensions of the bar were found to be
changed to 9.9985 mm x 9.9985 mm while using a material having
modulus of rigidity equal to 0.8 x 107 N/cm2. By determining the
values for different moduli, identify the properties of material
and establish the relationship between them. What changes...
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