Question
In: Statistics and Probability
The following table gives mean daily calorie intake (all residents) and infant mortality rate (per 1000...
The following table gives mean daily calorie intake (all residents) and infant mortality rate (per 1000 births) for ten countries.
Country Mean
Daily
Calories Infant
Mortality Rate
Afghanistan 1523 154
Austria 3495 6
Burundi 1941 114
Colombia 2678 24
Ethiopia 1610 107
Germany 3443 6
Liberia 1640 153
New Zealand 3362 7
Turkey 3429 44
USA 3671 7
a) Find the regression equation.
b) Calculate the correlation coefficient, accurate to three decimal
places
c) Test the significance of the correlation coefficient with a 0.05 level of significance. Include definition of hypotheses, test statistic, p-value or critical value, decision about Ho, and conclusion.
d) Find the best estimate for the infant mortality rate for a country with mean daily calorie intake of 2800.
Solutions
orchestra answered 2 years agoRelated Solutions
#1) The following table gives mean daily calorie intake (all residents) and infant mortality rate (per...
#1) The following table gives mean daily
calorie intake (all residents) and infant mortality rate (per 1000
births) for ten countries.
Country
Mean Daily
Calories
Infant Mortality Rate
Afghanistan
1523
154
Austria
3495
6
Burundi
1941
114
Colombia
2678
24
Ethiopia
1610
107
Germany
3443
6
Liberia
1640
153
New Zealand
3362
7
...
Consider the bivariate regression results below for a model of infant mortality rate (deaths per 1000...
Consider the bivariate regression results below for a
model of infant mortality rate (deaths per 1000 live births) as a
function of GDP per capita measured in $1,000s. The regression
model was estimated with data for a sample of 42
countries.
Parameter Estimate Standard Error
Constant 87.53 6.18
GDP per capita -2.21 0.32
a) How much does the regression model predict the infant
mortality rate will change from a 12 unit
increase in GDP per capita (i.e., $10,000 per capita...
1. A researcher claims that the mean rate of Infant mortality in the City of Chicago...
1. A researcher claims that the mean rate of Infant mortality in
the City of Chicago is below 9.3 %. Based on the data represented
for the years 2005 – 2011, perform a hypothesis test to test his
claim using a significance level of α= 0.10.
2.Would your conclusion change for question 1 if you used a
significance level of α= 0.05? Explain.
Data:
community Area Name
Infant Mortality Rate
Rogers Park
6.4
West Ridge
5.1
Uptown
6.5
Lincoln Square...
The following table gives information on the amount of sugar (in grams) and the calorie count...
The following table gives information on the amount of sugar (in
grams) and the calorie count in one serving of a sample of 13
varieties of Kellogg’s cereal. Calories is the dependent variable.
Calculate the r-sqr, correlation coefficient, and explain each
value.
Index
1
2
3
4
5
6
7
8
9
10
11
12
13
Sugar (grams)
4
15
12
11
8
6
7
2
7
14
20
3
13
Calories
120
200
140
110
120
80
190
100...
The following table gives information on the amount of sugar (in grams) and the calorie count...
The following table gives information on the amount of sugar (in
grams) and the calorie count in one serving of a sample of 13
varieties of Kellogg's cereal. Sugar (grams) 5 15 12 11 8 6 7 2 7
14 20 5 13 Calories 130 200 160 110 130 80 210 120 120 190 190 110
120 Find the predictive regression equation of the number of
calories on the amount of sugar. Carry out all calculations
exactly, and round the...
The following table gives information on the amount of sugar (in grams) and the calorie count...
The following table gives information on the amount of sugar (in
grams) and the calorie count in one serving of a sample of 13
varieties of Kellogg’s cereal. Calories is the dependent variable.
Calculate the r-sqr, correlation coefficient, and explain each
value.
Index 1 2 3 4 5 6 7 8 9 10 11 12 13
Sugar (grams) 4 15 12 11 8 6 7 2 7 14 20 3 13
Calories 120 200 140 110 120 80 190 100...
The following table gives information on the calorie count and grams of fat for the11types of...
The following table gives information on the calorie count and
grams of fat for the11types of bagels produced by Panera Bread.
Bagel
Calories
Fat (grams)
Asiago Cheese
330
5.0
Blueberry
330
2.2
Chocolate Chip
370
5.8
Cinnamon Crunch
430
8.0
Cinnamon Swirl & Raisin
320
1.5
Everything
300
2.9
French Toast
350
5.6
Jalapeno & Cheddar
310
2.2
Plain
290
2.4
Sesame
310
1.7
Sweet Onion & Poppyseed
390
6.9
a. Find the least squares regression line with
calories as...
Consider the following data representing the daily calorie intake for dieters. 13801380, 10321032, 13181318, 10251025, 10211021,...
Consider the following data representing the daily calorie
intake for dieters.
13801380, 10321032, 13181318, 10251025, 10211021, 12541254,
14181418, 14251425, 11911191, 10601060, 11701170, 14171417,
11901190, 12601260, 10541054, 13931393, 10651065, 13851385,
10671067, 12671267, 13461346
Copy Data
Daily Calorie Intake for Dieters
Class
Frequency
Class Boundaries
Midpoint
Relative Frequency
Cumulative Frequency
1002–10811002–1081
1082–11611082–1161
1162–12411162–1241
1242–13211242–1321
1322–14011322–1401
1402–14811402–1481
Step 1 of 7: Determine the class width of the classes listed in
the frequency table.
Step 2 of 7: Determine the frequency of the second...
A health insurance company recorded the annual mortality rate (deaths per 100,000) for residents in 20...
A health insurance company recorded the annual mortality rate
(deaths per 100,000) for residents in 20 towns in a certain region.
They also collected data on the water hardness, measured by the
calcium concentration (parts per million, ppm) in the drinking
water. The following regression output was obtained:
Variable
Coefficient
Standard
error
Intercept
1,722
640.387
Calcium (ppm)
-2.088
1.468
(a) Interpret the slope of the regression line.
For every 1 ppm increase in calcium concentration in drinking
water, the mortality...
“Question2_Dataset.xlsx” contains the following data for several underdeveloped countries: Infant mortality rate Adult literacy rate Percentage...
“Question2_Dataset.xlsx” contains the following data for
several underdeveloped countries:
Infant mortality rate
Adult literacy rate
Percentage of students finishing primary school
Per capita GNP
Use this data to develop an equation that can be used to
predict infant mortality.
Are there any outliers in this set of data?
Interpret the coefficients in your equation. (What does each
coefficient number mean?)
Within what value should 95% of your predictions be infant
mortality be accurate?
Infant Mortality(deaths per thousand births)
%age adult...
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