This post is currently awaiting moderation.
Question
In: Statistics and Probability
The following data represent the rates (micrometers per hour) at which a razor cut made in the skin of anesthetized newts is closed by new cells.
The following data represent the rates (micrometers per hour) at which a razor cut made in the skin of anesthetized newts is closed by new cells.
28 20 21 39 32 23 18 31 14 23 18 22 28 24 33 12 23 21 25 25
a. Can we say that the data are approximately normally distributed?
b. Find a 95% confidence interval for population mean rate 𝜇 for the new cells to close a razor cut made in the skin of anesthetized newts.
c. Find a 99% confidence interval for 𝜇.
d. Is the 95% CI wider or narrower than the 99% CI? Briefly explain why
Solutions
Expert Solution
Solution
a. Can we say that the data are approximately normally distributed?
We can say that the data are approximately normally distribution (the more data the more accurate ).
b. Find a 95% confidence interval for population mean rate 𝝁 for the new cells to close a razor cut made in the skin of anesthetized newts.
SUN BUNRA answered 2 years agoRelated Solutions
The data below are the healing rates of cuts (micrometers per hour) in a matched pairs...
The data below are the healing rates of cuts (micrometers per
hour) in a matched pairs experiment. The pairs are the two hind
limbs of the same newt. In each pair, one limb had reduced
electrical field and the other (the control) had its natural
electrical field.
Newt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Difference (control ?experimental)
1
?10
?3
3
31
?4
12
3
7
10
22
4
1
3
Is...
The following data represent the speed of a car (in miles per hour) and its breaking...
The following data represent the speed of a car (in miles per
hour) and its breaking distance (in feet) on dry asphalt.
Speed
30
40
50
60
70
80
Breaking Distance
66.3
82.3
100.5
121.2
142.3
160.7
b) Find the least squares regresssion line. Round the slope and
y-intercept to two decimals.
B(x) =
(c) Find the linear correlation coefficient. Round your answer to 4
decimals.
r =
(d) Comment on whether a linear model is a good model. Explain...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.† 63.2 36.3 26.2 53.2
65.3 32.0 65.0 66.3 68.9 35.2 25.1 32.5 54.0 42.4 77.5 123.2 66.3
92.7 56.9 77.1 27.5 69.2 73.8 71.5 58.5 67.2 78.6 33.2 74.9 45.1
132.1 104.7 63.2 59.6 75.7 39.2 69.9 87.5 56.0 154.2 85.5 77.5 84.7
24.2 37.5 41.1 (a) Use a calculator with mean and sample standard
deviation keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.† 63.2 36.3 26.2 53.2
65.3 32.0 65.0 66.3 68.9 35.2 25.1 32.5 54.0 42.4 77.5 123.2 66.3
92.7 56.9 77.1 27.5 69.2 73.8 71.5 58.5 67.2 78.6 33.2 74.9 45.1
132.1 104.7 63.2 59.6 75.7 39.2 69.9 87.5 56.0 154.2 85.5 77.5 84.7
24.2 37.5 41.1 (a) Use a calculator with mean and sample standard
deviation keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.†
63.2
36.3
26.2
53.2
65.3
32.0
65.0
66.3
68.9
35.2
25.1
32.5
54.0
42.4
77.5
123.2
66.3
92.7
56.9
77.1
27.5
69.2
73.8
71.5
58.5
67.2
78.6
33.2
74.9
45.1
132.1
104.7
63.2
59.6
75.7
39.2
69.9
87.5
56.0
154.2
85.5
77.5
84.7
24.2
37.5
41.1
(1) Use a calculator with mean and sample standard deviation
keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.†
63.2
36.3
26.2
53.2
65.3
32.0
65.0
66.3
68.9
35.2
25.1
32.5
54.0
42.4
77.5
123.2
66.3
92.7
56.9
77.1
27.5
69.2
73.8
71.5
58.5
67.2
78.6
33.2
74.9
45.1
132.1
104.7
63.2
59.6
75.7
39.2
69.9
87.5
56.0
154.2
85.5
77.5
84.7
24.2
37.5
41.1
(a) Use a calculator with mean and sample standard deviation
keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.†
63.2
36.3
26.2
53.2
65.3
32.0
65.0
66.3
68.9
35.2
25.1
32.5
54.0
42.4
77.5
123.2
66.3
92.7
56.9
77.1
27.5
69.2
73.8
71.5
58.5
67.2
78.6
33.2
74.9
45.1
132.1
104.7
63.2
59.6
75.7
39.2
69.9
87.5
56.0
154.2
85.5
77.5
84.7
24.2
37.5
41.1
(a) Use a calculator with mean and sample standard deviation
keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.†
63.2
36.3
26.2
53.2
65.3
32.0
65.0
66.3
68.9
35.2
25.1
32.5
54.0
42.4
77.5
123.2
66.3
92.7
56.9
77.1
27.5
69.2
73.8
71.5
58.5
67.2
78.6
33.2
74.9
45.1
132.1
104.7
63.2
59.6
75.7
39.2
69.9
87.5
56.0
154.2
85.5
77.5
84.7
24.2
37.5
41.1
(a) Use a calculator with mean and sample standard deviation
keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.†
63.2
36.3
26.2
53.2
65.3
32.0
65.0
66.3
68.9
35.2
25.1
32.5
54.0
42.4
77.5
123.2
66.3
92.7
56.9
77.1
27.5
69.2
73.8
71.5
58.5
67.2
78.6
33.2
74.9
45.1
132.1
104.7
63.2
59.6
75.7
39.2
69.9
87.5
56.0
154.2
85.5
77.5
84.7
24.2
37.5
41.1
(a) Use a calculator with mean and sample standard deviation
keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.†
63.2
36.3
26.2
53.2
65.3
32.0
65.0
66.3
68.9
35.2
25.1
32.5
54.0
42.4
77.5
123.2
66.3
92.7
56.9
77.1
27.5
69.2
73.8
71.5
58.5
67.2
78.6
33.2
74.9
45.1
132.1
104.7
63.2
59.6
75.7
39.2
69.9
87.5
56.0
154.2
85.5
77.5
84.7
24.2
37.5
41.1
(a) Use a calculator with mean and sample standard deviation
keys to find the sample mean x...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- The partnership of Duro, Kemp and Roth is to be liquidated as soon as possible after...
- Write a program that allows the user to enter two integers and a character If the...
- Asteroids can be classified into two broad groups based on their composition and location: carbon-rich asteroids...
- 5._____ Which of the following statements about MBO is FALSE? A) It compares quantifiable target goals...
- Trust, or lack of trust, is an increasingly important issue in today’s organizations.71 In today’s uncertain...
- In this programming assignment, you will write C code that performs recursion. For the purpose of...
- Suppose you purchase one WM May strike=102 call contract at $5 and write one WM May...
ADVERTISEMENT