Consider the following data:
25
24
18
20
21
18
16
20
23
17
15
13...
Consider the following data:
25
24
18
20
21
18
16
20
23
17
15
13
19
23
24
20
16
26
21
24
15
22
16
12
20
23
19
26
20
25
21
19
21
25
23
26
21
19
20
14
(a)
Develop a frequency distribution
using classes of 12-14, 15-17, 18-20, 21-23, and 24-26.
Class
Frequency
12-14
15-17
18-20
21-23
24-26
Total
(b)
Develop a relative frequency
distribution and a percent frequency distribution using the classes...
10, 15, 17, 18, 29, 15, 17, 18, 16,
24,
13, 38, 49, 29, 14, 25,...
10, 15, 17, 18, 29, 15, 17, 18, 16,
24,
13, 38, 49, 29, 14, 25, 21, 14, 35,
37,
38, 10, 19, 28, 17, 19, 24, 31, 32,
25,
26, 28, 19, 17, 24
Draw the following charts using the dataset above. Please write
a sentence or two interpreting the result (35
pts):
Histogram with five bins (be sure to use class boundaries)
(10pts)
Boxplot (15pts)
Stem and Leaf Plot (10pts)
Consider the following data for two variables, x and y.
xi 4 5 7 8 10...
Consider the following data for two variables, x and y.
xi 4 5 7 8 10 12 12 22
yi 12 14 16 15 18 20 24 19
Use the facts that ̄x= 10, ̄y= 17.25, ˆy= 13.05 +.42x, Σ(xi −
̄x)^2= 226, and s= 5.58.
Compute the leverage values for these data. Do there appear to
be any influential observations in these data? Explain.
Use the data set 8, 10, 16, 18, 20, 22, 22, 24 for the next
problems....
Use the data set 8, 10, 16, 18, 20, 22, 22, 24 for the next
problems. 1. What is the mean of the data set? 2. What is the
median of the data set? 3. What is the range of the data set? 4.
What is the mode of the data set? 5. What is the standard deviation
of the data set? 6. Create a box and whisker plot for the data
set.
We have productivity data from 2 mills
Data from Mill 1: 1, 10, 18, 21, 22,...
We have productivity data from 2 mills
Data from Mill 1: 1, 10, 18, 21, 22, 22, 23, 25, 28, 29,
32, 34, 38, 40, n=13, Σx=342, Σx^2= 9836
Data from Mill 2: 13, 13, 13, 15, 18, 18, 18, 19, 19,
19, 21, 22, 22, 23, 23, 24, 27, 31, n=18, Σx=358, Σx^2=
7520
a) Calculate the mean and standard deviation for Mill
1
b) Calculate the mean and standard deviation for Mill
2
c) Assume the two are...
Construct a frequency distribution of the following data using
classes 0-9, 10-19,…so on
Data: 8, 15,...
Construct a frequency distribution of the following data using
classes 0-9, 10-19,…so on
Data: 8, 15, 18, 22, 24, 25, 26, 33, 35, 42. The constructed
frequency distribution is:
Positively Skewed
None
Negatively Skewed
Symmetric