Question

**1.**** ** **The
following data set is the number of hours that a sample of college
students**

** ** **spent studying for a
test:**

** ** ** **
** **** ****0,
0, 0 , 3, 3, 5, 6, 6, 8, 10, 12, 15**

**a)Find the 5-number summary for this data: Low,
Q1.Q2,Q3** **High **

** b) Use the 5-number summary to make a
box-and-whisker plot for this set of data. Be sure to use a number
line with an appropriate scale.**

**c) Based on the box-and-whisker plot, is the data skewed
left, skewed right, or symmetric?**

Answer #1

a)

low value means the minimum value =**0**

high value means the maximum value which is
**15**

0, 0, 0 , 3, 3, 5, 6, 6, 8, 10, 12, 15

Q2 means median,so we have to find middle number of this data

middle number =(5+6)/2 =11/2 =5.5

So **Q2 =5.5**

to find Q1,we take data on the left side of median

0, 0, 0 , 3, 3, 5

now we find middle of this

Q1 =(0+3)/2 =3/2 =**1.5**

to find Q1,we take data on the right side of median

6, 6, 8, 10, 12, 15

now we find middle of this

Q3 =(8+10)/2 =18/2 =**9**

b)

The box whisker plot is

c)

from the box plot,it can be seen that most of the data lies on the
right side of the median,hence this data is **skewed
right**

(a) Find the five-number summary, and (b) draw a
box-and-whisker plot of the data.
three
8
8
6
2
9
8
7
9
6
9
3
2
6
2
9
8
7
7
9
(a) min=__(simplify answer)
Q1=__ (simplify answer don't round)
Q2=___(simplify answer don't round)
Q3=__(simplify answer don't round)
max=___(simplify answer)
b) make correct box and whisker plot

In the year 2023, Gabriella Rodriguez is a leading midwife.
Gabriella is researching the number of babies delivered each week
and develops the following stem-and-leaf.
2 | 0122334455789
3 | 128
4 | 8
a) What is the range?
b) What is the mean?
c) Construct a 5 number summary box-and-whisker
plot (label the values on your plot). What type of shape is the
data (symmetric, positively skewed or negatively skewed)? Describe
why based on the box-and-whisker plot?

QUESTION 1
·
1 POINT
The following frequency table summarizes a set of data. What is
the five-number summary?
Value
Frequency
2
3
3
2
5
1
6
3
7
1
8
2
11
3
Select the correct answer below:
Min
Q1
Median
Q3
Max
2
7
9
10
11
Min
Q1
Median
Q3
Max
2
3
6
8
11
Min
Q1
Median
Q3
Max
2
3
4
8
11
Min
Q1
Median
Q3
Max
2
6
8
10
11...

Consider the following set of sample data, and find the
following (note: if you are using TI 83 to find these values, you
need to write down the formulas that you should have used)
19
12
9
19
0
4
3
14
5
5
24
2
5
7
17
(a). Mean
(b). Median
(c). Mode
(d). Standard Deviation
(e). Variance
(f). Find the z-score for 14.
(i). Construct a Box-whisker plot for the data
(j). Construct a frequency distribution Table....

The following data gives the number of hours 10 students spent
studying and their corresponding grades on their exams.
Hours Spent Studying
0.5
1
1.5
2
2.5
3
4.5
5
5.5
6
Grades
60
63
69
72
75
78
87
93
96
99
Step 1 of 3:
Draw a scatter plot of the given data.
2 of 3:
Estimate the correlation in words: positive, negative, no
correlation.
Step 3 of 3:
Calculate the correlation coefficient, r. Round your answer to...

The data show the distance (in miles) from an airport of a
sample of 22 inbound and outbound airplanes. Use technology to
answer parts (a) and (b).
a. Find the data set's first, second, and third quartiles.
b. Draw a box-and-whisker plot that represents the data
set.
4.5
3.1
5.4
5.3
3.4
4.4
4.2
2.3
4.8
3.7
4.5
4.4
3.3
2.2
1.9
2.1
4.5
4.1
3.6
4.2
2.4
3.5
a. Find the three quartiles.
Q1=
Q2=
Q3=

43 college students
44% male, 56% female
Students reported on the number of hours spent studying per
week (0-40 hours), their life satisfaction (scale from 0-100),
degree of stress they experienced over the last month (scale 0-5),
and completed an IQ test (40-160).
Students also reported their gender (1=male, 2=female) and
cumulative GPA.
For each of the statistical analyses (5 total) performed, you
need to provide responses to two questions:
What type of statistical analysis was used to
examine what...

Provided below is a simple data set for you to practice finding
descriptive measures. For the data set, complete parts (a)
through (c).
0, 2, 4, 5, 6, 0, 2, 4, 5, 6
a.
Obtain the quartiles.
Q1
=
Q2
=
Q3
=
(Type integers or decimals. Do not round.)
b.
Determine the interquartile range.The interquartile range is
"?"
(Type an integer or a decimal. Do not round.)
c.
Find the five-number summary.
(Type integers or decimals....

The following data gives the number of hours 77 students spent
studying and their corresponding grades on their exams.
Hours Spent Studying
0
1.5
2.5
3
4.5
5
6
Grades
63
72
78
81
87
90
93
Step 1 of 3:
Calculate the correlation coefficient, r. Round your answer to
six decimal places.
Step 2 of 3:
Determine if r is statistically significant at the 0.05
level
Step 3 of 3:
Calculate the coefficient of determination, r2. Round your
answer...

The following data gives the number of hours 1010 students spent
studying and their corresponding grades on their exams.
Hours Spent Studying
0.5
1.5
2
2.5
3
4
4.5
5
5.5
6
Grades
60
66
69
72
81
84
87
90
93
96
Step 3 of 3:
Calculate the correlation coefficient, r. Round your answer to
three decimal places.

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