Question
In: Statistics and Probability
1. Years of formal education appears to be related to income. From a sample of 60...
1. Years of formal education appears to be related to income. From a sample of 60 people, b1 = .02, the standard error of estimate is 10.52 and sx 2 is 13641. Using a 5% level of significance and a hypothesis test for the slope, is there a linear relationship between the two variables?
2. To investigate whether food budget and household income are related, data was collected from 125 households and the correlation coefficient for the two variables was found to be .377. Using a 5% level of significance and a hypothesis test for the correlation coefficient, is there a linear relationship between the two variables?
Solutions
orchestra answered 2 years agoRelated Solutions
A researcher is interested in whether the number of years of formal education is related to...
A researcher is interested in whether the number of years of
formal education is related to a person's decision to never smoke,
continue to smoke, or quit smoking cigarettes. The data below
represent the smoking status by level of education for residents of
the United States 18 years or older from a random sample of 350
residents. Round all numeric answers to four decimal places.
Smoking Status Education Level Current Former Never Less than high
school 46 12 26 High...
A random sample of 400 Hispanics has finished an average of 10.9 years of formal education...
A random sample of 400 Hispanics has finished an average of 10.9
years of formal education with a standard deviation of 1.7.
a) Is the education level in this
sample significantly lower than the national average of 12.2 years?
Use α=.01 level
b) Calculate the ES (effect size) and indicate if it is strong,
moderate, or weak.
(1 point) A researcher is interested in whether the number of years of formal education is...
(1 point) A researcher is interested in whether the number of
years of formal education is related to a person's decision to
never smoke, continue to smoke, or quit smoking cigarettes. The
data below represent the smoking status by level of education for
residents of the United States 18 years or older from a random
sample of 475 residents. Round all numeric answers to four decimal
places.
Smoking Status
Education Level
Current
Former
Never
Less than high school
25
21...
(1 point) A researcher is interested in whether the number of years of formal education is...
(1 point) A researcher is interested in whether the number of
years of formal education is related to a person's decision to
never smoke, continue to smoke, or quit smoking cigarettes. The
data below represent the smoking status by level of education for
residents of the United States 18 years or older from a random
sample of 475 residents. Round all numeric answers to four decimal
places.
Smoking Status
Education Level
Current
Former
Never
Less than high school
40
21...
(1 point) A researcher is interested in whether the number of years of formal education is...
(1 point) A researcher is interested in whether the number of
years of formal education is related to a person's decision to
never smoke, continue to smoke, or quit smoking cigarettes. The
data below represent the smoking status by level of education for
residents of the United States 18 years or older from a random
sample of 350 residents. Round all numeric answers to four decimal
places.
Smoking Status
Education Level
Current
Former
Never
Less than high school
14
19...
8) (1 point) A researcher is interested in whether the number of years of formal education...
8) (1 point) A researcher is interested in whether the number of
years of formal education is related to a person's decision to
never smoke, continue to smoke, or quit smoking cigarettes. The
data below represent the smoking status by level of education for
residents of the United States 18 years or older from a random
sample of 200 residents. Round all numeric answers to four decimal
places.
Smoking Status
Education Level
Current
Former
Never
Less than high school
15...
1. The following data set contains information on years of formal education and incomes in 2015....
1. The following data set contains information on years of
formal education and incomes in 2015.
Row Education Income in
in Years
2015 Dollars
1
7 22587
2
10 28305
3
12 40196
4
13 49483
5
14 54483
6
16 78073
7
18 99540
8
19 155646
9
21 125310
a. Estimate the regression equation Income = a +
b(Education).
b. What is the predicted increase in Income for a one-year
increase in Education?
c. What do you...
Peter put forth a hypothesis that “One’s Income is Positively Related to Education”. Income was measured...
Peter put forth a hypothesis that “One’s Income is Positively
Related to Education”. Income was measured by the amount of income
one got each month while education was measured by the number of
years of formal education one had received. (50%)
He found that Pearson r = 0.02, and the significance level (p) =
0.15.
1. Should he reject or confirm his hypothesis? Why or why
not?
2. Could he use chi square in this instance? Why or why not?...
You have obtained the number of years of education from one random sample of 35 police...
You have obtained the number of years of education from one
random sample of 35 police officers from City A and the number of
years of education from a second random sample of 30 police
officers from City B. The average years of education for the sample
from City A is 15 years with a standard deviation of 2 years. The
average years of education for the sample from City B is 14 years
with a standard deviation of 2.2...
1. A summary of data from the income statements and balance sheets of GCS Construction Company appears...
1. A
summary of data from the income statements and balance sheets of
GCS Construction Company appears below.
2008
2007
Current Assets
$366,000.00
$310,000.00
Total assets
$2,320,000.00
$1,740,000.00
Long- Term Liabilities
$800,000.00
$580,000.00
Current Liabilities
$180,000.00
$120,000.000
Owners Equity
$1,340,000.00
$1,040,000.00
Net Sales
$4,600.00.00
$3,480,000.00
Net Income
$
300,000.00
$204,000.00
A. Compute
the following liquidity measures for 2007 and 2007. Working capital
and current ratio. Comment on the difference...
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