The next three questions use the following state information.
State
# letters in name
Year entered the Union
Rank for entering the Union
Area (square miles)
Alabama
7
1819
22
52,423
Colorado
1876
38
104,100
Hawaii
1959
50
10,932
Iowa
1846
29
56,276
Maryland
1788
7
12,407
Missouri
1821
24
69,709
New Jersey
1787
3
8,722
Ohio
1803
17
44,828
South Carolina
13
1788
8
32,008
Utah
1896
45
84,904
Wisconsin
1848
30
65,499
We are interested in whether or not the number of letters in a state name depends upon the year the state entered the Union.
Decide which variable should be the independent variable and which should be the dependent variable.
Make a scatter plot of the data.
Does it appear from inspection that there is a relationship between the variables? Why or why not?
Calculate the least squares line. Put the equation in the form of:
Find the correlation coefficient. What does it imply about the significance of the relationship?
Find the estimated number of letters (to the nearest integer) a state would have if it entered the Union in 1900. Find the estimated number of letters a state would have if it entered the Union in 1940.
Use the two points in (f) to plot the least squares line on your graph from (b).
Does it appear that a line is the best way to fit the data? Why or why not?
Use the least squares line to estimate the number of letters a new state that enters the Union this year would have. Can the least squares line be used to predict it? Why or why not?
We are interested in whether there is a relationship between the ranking of a state and the area of the state.
Let rank be the independent variable and area be the dependent variable.
What do you think the scatter plot will look like? Make a scatter plot of the data.
Does it appear from inspection that there is a relationship between the variables? Why or why not?
Calculate the least squares line. Put the equation in the form of:
Find the correlation coefficient. What does it imply about the significance of the relationship?
Find the estimated areas for Alabama and for Colorado. Are they close to the actual areas?
Use the two points in (f) to plot the least squares line on your graph from (b).
Does it appear that a line is the best way to fit the data? Why or why not?
Are there any outliers?
Use the least squares line to estimate the area of a new state that enters the Union. Can the least squares line be used to predict it? Why or why not?
Delete “Hawaii” and substitute “Alaska” for it. Alaska is the fortieth state with an area of 656,424 square miles.
Calculate the new least squares line.
Find the estimated area for Alabama. Is it closer to the actual area with this new least squares line or with the previous one that included Hawaii? Why do you think that’s the case?
Do you think that, in general, newer states are larger than the original states?
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
