Question
The ages (in years) of 6 children and the number of words in their vocabulary Age,...
The ages (in years) of 6 children and the number of words in their vocabulary
Age, x 1 2 3 4 5 6
Vocabulary size, y 1050 1050 1050 1300 1800 2200
For the following data
(a) display the data in a scatter plot,
(b) calculate the correlation coefficient r
(c) make a conclusion about the type of correlation.
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
For the following data (a) display the data in a scatter plot, (b) calculate the correlation...
For the following data (a) display the data in a scatter plot,
(b) calculate the correlation coefficient r, and (c) make a
conclusion about the type of correlation. The ages (in years) of 6
children and the number of words in their vocabulary. (b) The
correlation coefficient r is nothing. (Round to three decimal
places as needed.) (c) Which of the following best describes the
type of correlation that exists between age and vocabulary size?
A. Weak positive linear correlation...
The ages in years of 10 children and the number of words in their vocabulary are...
The ages in years of 10 children and the number of words in
their vocabulary are shown below.
Age (x) 1 2 3 4 5 6 3 5 2 4
Vocabulary
Size (y) 3 220 540 1100 2100 2600 730 2200 260 1200
Which variable is the dependent variable and which variable is
the independent variable?
Using technology, calculate both the correlation value r and the
regression equation between these two variables.
Interpret the correlation value r in regards to...
For the following data (a) display the data in a scatter plot, (b) calculate the correlation...
For the following data (a) display the data in a scatter plot,
(b) calculate the correlation coefficient r, and (c) make a
conclusion about the type of correlation.
The ages (in years) of
six
children and the number of words in their vocabulary
Age, x
Vocabulary size, y
1
300
2
700
3
1000
4
1450
5
2100
6
2400
make a scatter plot based on this
(b) The correlation coefficient r is
____?
(Round to three decimal places as...
For the following data (a) display the data in a scatter plot, (b) calculate the correlation...
For the following data (a) display the data in a scatter plot,
(b) calculate the correlation coefficient r, and (c) make a
conclusion about the type of correlation.
The ages (in years) of
six
children and the number of words in their vocabulary
Choose the correct scatter plot
(b) The correlation coefficient r is
____
(Round to three decimal places as needed.)
(c) Which of the following best describes the type of
correlation that exists between age and vocabulary size?...
The ages (in years) of eight children and the number of words in their vocabulary are...
The ages (in years) of eight children and the number of words in
their vocabulary are noted in the table below. Find the correlation
( r ) and then test to see if there is enough evidence to conclude
that there is a significant linear correlation between the
data.
Vocabulary
Age
Size
x
y
1
3
2
440
3
1200
3
1100
4
1500
5
2100
5
2000
6
2600
What is r?
Ho:?
Ha:?
Level of Significance (alpha):?
Number...
The data below represent the ages of drivers and the number of accidents reported for each...
The data below represent the ages of drivers and the number of
accidents reported for each age group in Pennsylvania for a
selected year. Use an excel spreadsheet to create a scatter plot
and calculate the sample correlation coefficient. At the α = 0.10
level, test for a significant correlation between age and number of
accidents. Age, x 16 17 18 19 20 21 Number of accidents, y 6605
8932 8506 7349 6458 5974
The age in years and the number of hours of sleep in one night for seven...
The age in years and the number of hours of sleep in one night
for seven adults.
Age,x 35,20,59,42,68,38,75
Hrs of sleep,y 7,9,5,6,5,8,4
1. Use excel to do a scatter plot. Remember your title and axis
titles.
2. Caculate the correlation coefficient r using excel
3. What is R to the power of 2?
4. calculate the slope,m, of the regression line using excel
5. calculate the y intercept,b, of vthe regression line using
excel
6. write the regression line...
Age and Vocabulary Researchers claim that there is significant positive linear correlation between population age and...
Age and Vocabulary Researchers claim that there
is significant positive linear correlation between
population age and vocabulary based on a sample of nine children
with correlation coefficient r = 0.841. Test this claim at the 95%
confidence level. Select one for each blank.
(a) Hypotheses:
H0: [r, rho, x, mu] [=, >=, <=, >, >] 0
Ha: [r, rho, x, mu] [=, >=, <=, >, <] 0
(b) Type of test: [Two sided, Right sided, Left sided]
(c)...
For the following data (a) display the data in a scatter plot, (b) calculate the sample...
For the following data (a) display the data in a scatter plot,
(b) calculate the sample correlation coefficient r, and (c) make
a conclusion about the type of correlation. Use technology.
The maximum weights (in kilograms) for which one repetition of
a half squat can be performed and the times (in seconds) to run a
10-meter sprint for 12 international soccer players are shown in
the attached data table.
Maximum_Weight,_x Time,_y
170 1.78
175 1.75
150 2.04
210 1.42
150...
Part 2 (Numerical Descriptive Techniques) The following data represent the ages of a sample of 25...
Part 2 (Numerical Descriptive Techniques)
The following data represent the ages of a sample of 25
employees from a government department. Enter this data on a sheet
called Employee Data.
31
43
56
23
49
42
33
61
44 28
48
38
44
35
40
64
52
42
47 39
53
27
36
35 20
Find the median age.
Find the lower quartile of the ages.
Find the upper quartile of the ages.
Compute the range and...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 20 minutes ago
asked 24 minutes ago
asked 27 minutes ago
asked 30 minutes ago
asked 34 minutes ago
asked 43 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago