Question

4) Given the data set below

25 52 67 23 78 89 57 90 32 77

45 48 62 54 94 69 46 79 40 33

21 57 84 54 23 34 68 63 61 76

87 78 39 50 70 60 32 65 73 45

28 82 66 79 71 80 46 66 24 90

For the dada of Problem 1, find the approximate mean using the Frequency Distribution from problem 1

5) Find the Median of the data set from problem 1 using an arranged Stemplot

6) Find The mode from the data set in problem 1

7) Find the Midrange for the data set in problem 1

Answer #1

1) Given the data set below
25 52 67 23 78 89 57 90 32 77
45 48 62 54 94 69 46 79 40 33
21 57 84 54 23 34 68 63 61 76
87 78 39 50 70 60 32 65 73 45
28 82 66 79 71 80 46 66 24 90
a) Construct a Frequency Distribution with 8 classes and a class
width of 10
b) Construct a Relative Frequency distribution from the frequency
distribution...

Student Grades
Student
Test
Grade
1
76
62
2
84
90
3
79
68
4
88
84
5
76
58
6
66
79
7
75
73
8
94
93
9
66
65
10
92
86
11
80
53
12
87
83
13
86
49
14
63
72
15
92
87
16
75
89
17
69
81
18
92
94
19
79
78
20
60
71
21
68
84
22
71
74
23
61
74
24
68
54
25
76
97...

Refer to the accompanying data set and construct a 95%
confidence interval estimate of the mean pulse rate of adult
females; then do the same for adult males. Compare the results.
Males Females
81
82
72
94
52
57
59
66
51
54
62
80
52
77
74
85
51
89
62
57
73
35
61
64
62
87
80
74
80
79
63
62
63
67
97
76
43
60
85
65
72
86
66
85
73
69
72 ...

Using the accompanying Student Grades data, construct a scatter
chart for midterm versus final exam grades and add a linear
trendline. What is the model? If a student scores 7878 on the
midterm, what would you predict her grade on the final exam to
be?
Student
Midterm
Final Exam
1
75
64
2
85
91
3
80
68
4
88
83
5
76
60
6
67
80
7
78
74
8
95
94
9
67
61
10
93
87
11...

Use the pulse rates in beats per minute (bpm) of a random
sample of adult females listed in the data set available below to
test the claim that the mean is less than 77 bpm. Use a
0.01significance level
Click the icon to view the pulse rate data.
59 38
95 92
105 90
81 94
77 78
101 69
47 45
78 90
80 104
75 87
63 61
66 48
35 54
49 39
90 35
97 92...

The Test Scores for a Statistics course are given in the Excel
below.
The data (X1, X2, X3, X4) are for each student.
X1 = score on exam #1
X2 = score on exam #2
X3 = score on exam #3
X4 = score on final exam
Your professor wants to know if all tests are created equal.
What is the F-Stat?
EXAM1
EXAM2
EXAM3
FINAL
73
80
75
65.86667
93
88
93
80.16667
89
91
90
78
96
98...

Refer to the Body Measurements Female Data Set and Body
Measurements Male Data Set found in StatDisk (Elementary Stats 12th
Edition, sets #1a and 1b) and use columns 5 for HDL. Use a .05
significance level to test the claim that men and women have the
same mean HDL level (High-Density Lipoprotein) female 74 56 70 40
67 96 43 80 77 41 23 76 39 52 38 37 57 81 37 50 73 61 33 41 60 62
67...

Refer to the accompanying data set and construct a 90%
confidence interval estimate of the mean pulse rate of adult
females; then do the same for adult males. Compare the results.
LOADING... Click the icon to view the pulse rates for adult females
and adult males. Construct a 90% confidence interval of the mean
pulse rate for adult females. nothing bpm less than < mu μ less
than < nothing bpm (Round to one decimal place as needed.)
Construct a...

Using the given data set to answer the following questions80 60
100 40 40 50 80 90 100 60 10 80 45 60 30 80 30 90 100 60 50 75
a. find Mean, Median, Mode, Standard Deviation, and
Variance:
b. find First quartile and Third Quartile
c. Find the number which represents the 33th percentile.
d. find the percentile of 45
e. find the range and midrange
f. construct a box-plot
g. Construct a frequency distribution with 5 classes....

10
A)
What is the best regression to forecast
salary?
10
C)
Are all variables statistically
significant? Did you drop any
Final
Math Pre req
Hours
Work experience
94
92
5
Y
74
90
3
Y
74
87
4
Y
76
84
3
N
66
87
2
N
80
49
4
Y
74
42
3
N
71
61
4
N
84
81
5
N
76
67
5
Y
95
93
4
N
78
56
5
N
71
54
3
Y
82...

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