Question
The following table shows the number of glasses of milk that children of various ages (in...
The following table shows the number of glasses of milk that children of various ages (in years) drink per day. age 2 3 4 7 9 glasses 9 7 5 5 4
(a) Find the estimated linear regression equation. Regard age as the x variable and glasses as the y variable.
Homework Answers
Answer #1
regression equation is 
Not the answer you're looking for?
Similar Questions
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...
Following is an extract from the database of a construction company. The table shows the height...
Following is an extract from the database of a construction
company. The table shows the height of walls (x) in feet and the
cost (y) of raising them. The estimated simple linear regression
equation is given as Ŷ = b0 + b1X. Using Excel, find the regression
model to determine the value of the coefficient b1. Height (ft)
Cost ($) 4 670 3 430 7 810 9 1100 6 790 8 880 5 760 11 1200
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...
Use the data shown in the table that shows the number of bacteria present after a...
Use the data shown in the table that shows the number of
bacteria present after a certain number of hours. Replace each
y-value in the table with its logarithm,
log y
.
Find the equation of the regression line for the transformed
data. Then construct a scatterplot of
left parenthesis x comma log y right parenthesis
and sketch the regression line with it. What do you notice?
Number of hours comma x
1
2
3
4
5
6
7
Number...
The table shows the number of days that milk will keep as a function of the...
The table shows the number of days that milk will keep as a
function of the temperature. Use the method of least squares to
find the function of the best-fitting linear model for the data
that gives the number of days milk can be stored safely where
t is temperature in °F, with data from
30 ≤ t ≤ 50.
(Round all numerical values to three decimal places.)
d(t) =
Number of Days Milk Can be Stored Safely
Temperature (°F)...
The following data represents the sap production for trees of various ages. use the data to...
The following data represents the sap production for trees of
various ages. use the data to answer the questions that follow:
Tree Age (years) Sap Production (in mL) 7| 200 ,50| 350 10| 370 17|
380, 35| 480, 8 280 27 420 40 430 12 320 45 360 22 480 42 390 30
430 37 450 a. Create a scatterplot of the above data using age as
the explanatory variable. Describe the relationship you see based
on the scatterplot b....
The table below shows the number of cars sold last month by seven employees at Concord...
The table below shows the number of cars sold last month by
seven employees at Concord Motors and their number of years of
sales experience.
Experience
Sales
1
8
2
6
2
7
4
14
5
9
6
13
8
10
Management would like to use simple regression analysis to estimate
monthly car sales using the number of years of sales experience.
The y-intercept for the regression equation is ________.
2.165
4.598
6.940
8.337
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.
Question 7. Patients of various ages (X) undergoing the same medical treatment suffer asthma attacks of...
Question 7. Patients of various ages (X)
undergoing the same medical treatment suffer asthma attacks of
different durations (Y).
Age
(in years)
Duration of attacks
(in minutes)
30
15
25
28
65
30
50
22
40
24
(a) Draw a scatter diagram.
(b) Find the regression equation.
(c) Interpret the values of a and
b.
(d) Predict the duration of an attack if the patient is 42 years
old.
Music MogulsNicole, Aleenaand Shaked, aka N.A.S.!compiled the followingdata shown in the table. The table shows the...
Music MogulsNicole, Aleenaand Shaked, aka N.A.S.!compiled the
followingdata shown in the table. The table shows the predicted
number of cd’s sold for a song, based on audience impressions, in
hundreds ofmillions. Note: Number of cd’s sold are in hundreds of
millions.
Impressions(x): 28 13 14 24 20 18 14 24 17
Cd’s sold (y): 19 7 7 20 6 4 5 25 12
a. Draw a scatter plot using the data from the table.
(4pts.)
b. Find “y-hat” (linear regression...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 2 minutes ago
asked 6 minutes ago
asked 23 minutes ago
asked 27 minutes ago
asked 28 minutes ago
asked 33 minutes ago
asked 38 minutes ago
asked 41 minutes ago
asked 56 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago