If the length of the American Black bears is normally distributed with mean 142.9 cm and standard deviation 11.6 cm, use the empirical rule to determine the two values between which the middle 95% of lengths lie. State education departments require annual proficiency tests for elementary students. dint math ccores? The nroficiency rates (%) for reading and math 3.
If the length of the American Black bears is normally distributed with mean 142.9 cm and standard deviation 11.6 cm, use the empirical rule to determine the two values between which the middle 95% of lengths lie. State education departments require annual proficiency tests for elementary students. dint math ccores? The nroficiency rates (%) for reading and math 3.
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section: Chapter Questions
Problem 11CT
Related questions
Question
![State education departments require annual proficiency tests for elementary students.
Can reading scores predict math scores? The proficiency rates (%) for reading and math
in the most populous states are:
reading
3.
60
73
75
66
75
79
79
73
67
71
math
59
78
70
68
70
77
76
66
64
73
a. What is the explanatory variable?
b. What is the response variable?
C. Find the correlation.
d. Write the regression equation. [4 places]
e. Identify the slope in (d) and explain what it means.
f. Identify the y-intercept in (d) and explain what it means.
g. Using your answer to (d), what math proficiency rate would you expect a state with
a 70% reading rate to have?
h. Do you think that your answer to (g) is reliable? Explain.
i. Using your answer to (d), what math proficiency rate would you expect a state with
a 50% reading rate to have?
Do you think that your answer to (i) is reliable? Explain.
С.
[4 places]
[integer)
[integer]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F46276d41-29cb-45bb-9a9d-b3d84eab489e%2F05a52125-7e38-457c-9861-8fe43207e92f%2Fh7ty1j_processed.jpeg&w=3840&q=75)
Transcribed Image Text:State education departments require annual proficiency tests for elementary students.
Can reading scores predict math scores? The proficiency rates (%) for reading and math
in the most populous states are:
reading
3.
60
73
75
66
75
79
79
73
67
71
math
59
78
70
68
70
77
76
66
64
73
a. What is the explanatory variable?
b. What is the response variable?
C. Find the correlation.
d. Write the regression equation. [4 places]
e. Identify the slope in (d) and explain what it means.
f. Identify the y-intercept in (d) and explain what it means.
g. Using your answer to (d), what math proficiency rate would you expect a state with
a 70% reading rate to have?
h. Do you think that your answer to (g) is reliable? Explain.
i. Using your answer to (d), what math proficiency rate would you expect a state with
a 50% reading rate to have?
Do you think that your answer to (i) is reliable? Explain.
С.
[4 places]
[integer)
[integer]
![end of your work. (This information should not affect your grade.)
me the name(s) at the
All necessary work MUST be shown! Work must be done neatly and legibly.
Craft breweries are quite popular. One survey showed the following numbers found for
an SRS of states east of the Mississippi.
1.
18
10
47
22
52
13
38
23
40
16
20
46
14
19
20
76
Find the five-number summary--in order.
Find the upper & lower fences. Are there any outliers?
Draw a boxplot.
Use your calculator to find the mean & standard deviation.
a.
b.
C.
d.
If the length of the American Black bears is normally distributed with mean 142.9 cm
and standard deviation 11.6 cm, use the empirical rule to determine the two values
between which the middle 95% of lengths lie.
State education departments require annual proficiency tests for elementary students.
Can reading scores predict math scores? The proficiency rates (%) for reading and math
in the most populous states are:
3.
od-
reading
60
73
75
66
75
79
79
73
67
71
math
59
78
70
68
70
77
76
66
64
73
a. What is the explanatory variable?
b. What is the response variable?
C. Find the correlation.
d. Write the regression equation. [4 places]
e. Identify the slope in (d) and explain what it means.
f. Identify the y-intercept in (d) and explain what it means.
g. Using your answer to (d), what math proficiency rate would you expect a state with
a 70% reading rate to have?
[ 4 places]
[integer]
h. Do you think that your answer to (g) is reliable? Explain.
Using your answer to (d), what math proficiency rate would you expect a state with
a 50% reading rate to have?
j. Do you think that your answer to (i) is reliable? Explain.
i.
[integer]
7:02365](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F46276d41-29cb-45bb-9a9d-b3d84eab489e%2F05a52125-7e38-457c-9861-8fe43207e92f%2Fhbd80or_processed.jpeg&w=3840&q=75)
Transcribed Image Text:end of your work. (This information should not affect your grade.)
me the name(s) at the
All necessary work MUST be shown! Work must be done neatly and legibly.
Craft breweries are quite popular. One survey showed the following numbers found for
an SRS of states east of the Mississippi.
1.
18
10
47
22
52
13
38
23
40
16
20
46
14
19
20
76
Find the five-number summary--in order.
Find the upper & lower fences. Are there any outliers?
Draw a boxplot.
Use your calculator to find the mean & standard deviation.
a.
b.
C.
d.
If the length of the American Black bears is normally distributed with mean 142.9 cm
and standard deviation 11.6 cm, use the empirical rule to determine the two values
between which the middle 95% of lengths lie.
State education departments require annual proficiency tests for elementary students.
Can reading scores predict math scores? The proficiency rates (%) for reading and math
in the most populous states are:
3.
od-
reading
60
73
75
66
75
79
79
73
67
71
math
59
78
70
68
70
77
76
66
64
73
a. What is the explanatory variable?
b. What is the response variable?
C. Find the correlation.
d. Write the regression equation. [4 places]
e. Identify the slope in (d) and explain what it means.
f. Identify the y-intercept in (d) and explain what it means.
g. Using your answer to (d), what math proficiency rate would you expect a state with
a 70% reading rate to have?
[ 4 places]
[integer]
h. Do you think that your answer to (g) is reliable? Explain.
Using your answer to (d), what math proficiency rate would you expect a state with
a 50% reading rate to have?
j. Do you think that your answer to (i) is reliable? Explain.
i.
[integer]
7:02365
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