Question
In: Statistics and Probability
0, 3, 11, 24, 36, 47, 42, 53, 56, 59, 52, 58, 50, 64, 63, 61,...
0, 3, 11, 24, 36, 47, 42, 53, 56, 59, 52, 58, 50, 64, 63, 61,
65, 78, 89, 91
A. Calculate the mean, median, and mode.
B. Which measure, mean or median, best describes the central
tendency of this data? Why?
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orchestra answered 1 year agoRelated Solutions
48 51 52 52 53 54 54 54 55 56 58 58 59 61 63 65...
48
51
52
52
53
54
54
54
55
56
58
58
59
61
63
65
65
67
69
70
73
75
75
76
77
77
79
80
81
82
82
Find the 76th percentile
Find the 43rd percentile
Find the 20th percentile
Find the 76th percentile
x y 14 50 10 55 12 54 11 56 10 58 9 59 6 61...
x
y
14
50
10
55
12
54
11
56
10
58
9
59
6
61
4
62
1.What is the slope?
2. What is the intercept?
3. Using the prediction of x=11 what are the residuals?
4. The sum of squared residuals is 12.038 calculate the standar
deviation of the regression
5. What is the test statistic?
Population 1 59 57 77 60 59 64 72 67 Population 2 61 53 84 53...
Population 1
59
57
77
60
59
64
72
67
Population 2
61
53
84
53
69
74
64
73
Can it be concluded, from this data, that there is a significant
difference between the two population means?
Let d=(Population 1 entry)−(Population 2 entry)d=(Population 1
entry)−(Population 2 entry). Use a significance level of
α=0.01α=0.01 for the test. Assume that both populations are
normally distributed.
1.State the null and alternative hypotheses for the test
2. Find the value of the standard...
Sample 1 Sample 2 68 76 29 38 52 47 32 36 53 59 35 38...
Sample 1
Sample 2
68
76
29
38
52
47
32
36
53
59
35
38
41
36
36
24
52
52
35
40
50
44
75
86
59
69
63
77
49
49
Use the XLMiner Analysis ToolPak to find descriptive statistics
for Sample 1 and Sample 2. Select "Descriptive Statistics" in the
ToolPak, place your cursor in the "Input Range" box, and then
select the cell range A1 to B16 in the sheet. Next, place your
cursor in...
Age 58 69 43 39 63 52 47 31 74 36 Cholesterol level 189 235 193...
Age
58
69
43
39
63
52
47
31
74
36
Cholesterol level
189
235
193
177
154
191
213
165
198
181
(3) (Continued from Question 2) Based on the sample of 10 men
with ages and cholesterol levels given in the table in Question 2,
answer the following.
(a) At 5% significance level, do the data provide sufficient
evidence to conclude that age is useful as a (linear) predictor of
cholesterol level? State any assumption(s) you make.
(b)...
46 42 37 52 58 36 75 72 90 65 78 80 56 40 48 60...
46
42
37
52
58
36
75
72
90
65
78
80
56
40
48
60
58
76
82
75
38
48
86
88
75
65
45
80
68
47
62
75
56
85
44
70
75
64
67
72
For the data set distribution of Salaries of
the
employees
Arrange in an array (ascending order)
Evaluate the mean, the
median, the mode, the
skew, the average deviation the
standard deviation and the interquartile
range.
Group, on a new...
The blood LDL (in mg/dl) present in the samples of 11 patients are: 5, 19, 42, 11, 50, 30, 21, 0, 52, 36, 27. Find the median?
The blood LDL (in mg/dl) present in the samples of 11 patients are: 5, 19, 42, 11, 50, 30, 21, 0, 52, 36, 27. Find the median?
The actual values for 12 periods (shown in order) are: (1) 45 (2) 52 (3) 48 (4) 59 (5) 55 (6) 58 (7) 64 (8) 61 (9) 71 (10) 66 (11) 69 (12) 77
Question 1 contains the actual values for 12 periods (listed in
order, 1-12). In Excel, create forecasts for periods 6-13 using
each of the following methods: 5 period simple moving average; 4
period weighted moving average (0.63, 0.26, 0.08, 0.03);
exponential smoothing (alpha = 0.23 and the forecast for period 5 =
53); linear regression with the equation based on all 12 periods;
and quadratic regression with the equation based on all 12 periods.
Round all numerical answers to two...
The actual values for 12 periods (shown in order) are: (1) 45 (2) 52 (3) 48 (4) 59 (5) 55 (6) 58 (7) 64 (8) 61 (9) 71 (10) 66 (11) 69 (12) 77
Question 1 contains the actual values for 12 periods (listed in
order, 1-12). In Excel, create forecasts for periods 6-13 using
each of the following methods: 5 period simple moving average; 4
period weighted moving average (0.63, 0.26, 0.08, 0.03);
exponential smoothing (alpha = 0.23 and the forecast for period 5 =
53); linear regression with the equation based on all 12 periods;
and quadratic regression with the equation based on all 12
periods. Round all numerical answers to two...
Consider the table of test scores below: 36 16 61 97 27 37 64 59 91...
Consider the table of test scores below:
36
16
61
97
27
37
64
59
91
81
86
39
56
85
26
36
51
18
68
69
78
61
49
29
82
Find the Mean.
Find the Median.
Find the Mode.
Discuss which of these statistics you would use to describe
this set of test scores and back up your choice with some reasoning
from the book or from your notes.
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