Question
37 39 35 25 20 37 15 22 28 15 33 31 19 19 19 Question...
| 37 |
| 39 |
| 35 |
| 25 |
| 20 |
| 37 |
| 15 |
| 22 |
| 28 |
| 15 |
| 33 |
| 31 |
| 19 |
| 19 |
| 19 |
Question 13,The following data measures the age of a random sample of 15 individuals in a group of aerobic exercises.
what is the standard deviation?
Homework Answers
Answer #1
To find standard deviation we first need to find sample mean
To find standard deviation
Create the following table.
| data | data-mean | (data - mean)2 |
| 37 | 10.7333 | 115.20372889 |
| 39 | 12.7333 | 162.13692889 |
| 35 | 8.7333 | 76.27052889 |
| 25 | -1.2667 | 1.60452889 |
| 20 | -6.2667 | 39.27152889 |
| 37 | 10.7333 | 115.20372889 |
| 15 | -11.2667 | 126.93852889 |
| 22 | -4.2667 | 18.20472889 |
| 28 | 1.7333 | 3.00432889 |
| 15 | -11.2667 | 126.93852889 |
| 33 | 6.7333 | 45.33732889 |
| 31 | 4.7333 | 22.40412889 |
| 19 | -7.2667 | 52.80492889 |
| 19 | -7.2667 | 52.80492889 |
| 19 | -7.2667 | 52.80492889 |
Find the sum of numbers in the last column to get.
Hence Standard deviation is 
Not the answer you're looking for?
Similar Questions
Question 5 37 39 35 25 20 37 15 22 28 15 33 31 19 19...
Question 5
37
39
35
25
20
37
15
22
28
15
33
31
19
19
19
192/5000
The following data measures the age of a random sample of 15
individuals in a group of aerobic exercises.
What percentage of the data is within a standard deviation
A. 40%
B. 25%
C. 60%
D. 45%
14, 31, 22, 19, 27, 33, 28, 17, 25, 33, 37, 40, 39, 40 Calculate the...
14, 31, 22, 19, 27, 33, 28, 17, 25, 33, 37, 40, 39, 40
Calculate the median, mean, IQR, S
Where would a small minority of scores be found?
Where would a score of 30 be found?
39 29 20 33 28 25 23 34 37 39 26 34 33 42 32 42...
39 29 20 33 28
25 23 34 37 39
26 34 33 42 32
42 45 24 32 41
48 36 16 13 40
A survey of 25 randomly selected customers found the ages shown
(in years). The mean is 32.44 years and the standard deviation is
8.97 years. a) Construct a 99% confidence interval for the mean
age of all customers, assuming that the assumptions and conditions
for the confidence interval have been met. b) How large is...
Data set: 15 26 64 54 35 48 31 23 29 51 39 28 46 35...
Data set: 15 26 64 54 35 48 31 23 29 51 39 28 46 35 4
22 37 28 52.
Is the number 4 an outlier? Test with the Dixon and Standard
Deviation Test.
descriptive statistics for the given data 4 8 18 20 21 22 23 24 25 26...
descriptive statistics
for the given data
4 8 18 20 21 22 23 24 25 26 27 28 29 30 31 31 32 32 33 33 34 35 36
37 38 39 47 53
weeks 39 42 37 41 39 38 37 35 38 37 45 42 40 38 38...
weeks 39 42 37 41 39 38 37 35 38 37 45 42 40 38 38 40 40 24 40
37 39 40 39 40 38 38 39 40 39 38 42 36 29 29 35 35 31 42 38 41 43
41 40 38 37 38 41 40 40 38 40 40 42 41 37 39 40 38 39 41 40 39 39
37 41 40 38 44 41 37 36 33 30 36 33 39 39 40 40...
1) Suppose we gather the following sample: X 32 22 36 42 39 27 25 37...
1) Suppose we gather the following sample:
X
32
22
36
42
39
27
25
37
30
28
Using this sample, calculate the upper bound for the 95%
confidence interval.
Round your answer to four decimal places.
2)
Suppose we gather the following sample:
X
11
15
19
37
40
10
43
13
17
41
Using this sample, calculate the lower bound for the 95%
confidence interval.
Round your answer to four decimal places.
Studen Age 28 27 28 30 29 29 35 29 34 29 25 30 28 31...
Studen Age
28
27
28
30
29
29
35
29
34
29
25
30
28
31
27
27
34
30
26
27
31
32
34
27
31
34
32
29
25
30
32
28
34
28
23
27
30
26
35
31
25
33
29
31
26
33
33
31
38
22
1. Follow a good modeling scheme. Make sure all calculations are
done in Excel
2. Cell
with formulas, intermediate calculations painted light green
3. All
calculations or numbers...
The results of a sample of 372 subscribers toWiredmagazine shows the time spent using the Internet...
The results of a sample of 372 subscribers
toWiredmagazine shows the time spent using the Internet
during the week. Previous surveys have revealed that the population
standard deviation is 10.95 hours. The sample data can be found in
the Excel test data file.
What is the probability that another sample of 372 subscribers
spends less than 19.00 hours per week using the Internet?
Develop a 95% confidence interval for the population mean
If the editors of Wiredwanted to have the...
____________________________________________ The results of a sample of 372 subscribers to Wired magazine shows the time spent...
____________________________________________
The results of a sample of 372 subscribers to Wired
magazine shows the time spent using the Internet during the week.
Previous surveys have revealed that the population standard
deviation is 10.95 hours. The sample data can be found in the Excel
test data file.
What is the probability that another sample of 372 subscribers
spends less than 19.00 hours per week using the Internet?
____________________________________________
Develop a 95% confidence interval for the population mean
____________________________________________
If the editors...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 1 minute ago
asked 2 minutes ago
asked 13 minutes ago
asked 19 minutes ago
asked 21 minutes ago
asked 41 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 2 hours ago