E Click the icon to view the data for drinks per week of adult men and women. a. Compare the mean number of drinks for men and women. The mean number of drinks for men is. The mean number of drinks for women is. The mean number of drinks for men is V than the mean number of drinks for women. (Round to two decimal places as needed.) Lower b. Compare the standard deviation of the number of drinks of men and of women. Higher The standard deviation of the number of drinks for men is. The standard deviation of the number of drinks for women is. The standard deviation of the number of drinks for men is (Round to two decimal places as needed.) V than the standard deviation of the number of drinks for womer Lower c. Remove the outliers of 70 and 47 drinks for the men, and compare the means again. What effect did removing the outliers have on the mean? Higher With the outliers removed, the new mean number of drinks for men is The mean number of drinks for women is. The new mean number of drinks for men is V than the mean number of drinks for women. (Round to two decimal places as needed.) Lower
E Click the icon to view the data for drinks per week of adult men and women. a. Compare the mean number of drinks for men and women. The mean number of drinks for men is. The mean number of drinks for women is. The mean number of drinks for men is V than the mean number of drinks for women. (Round to two decimal places as needed.) Lower b. Compare the standard deviation of the number of drinks of men and of women. Higher The standard deviation of the number of drinks for men is. The standard deviation of the number of drinks for women is. The standard deviation of the number of drinks for men is (Round to two decimal places as needed.) V than the standard deviation of the number of drinks for womer Lower c. Remove the outliers of 70 and 47 drinks for the men, and compare the means again. What effect did removing the outliers have on the mean? Higher With the outliers removed, the new mean number of drinks for men is The mean number of drinks for women is. The new mean number of drinks for men is V than the mean number of drinks for women. (Round to two decimal places as needed.) Lower
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
he number of alcoholic drinks per week is given below for adult men and women who drink. Complete parts (a) through (d) below.
Transcribed Image Text:The number of alcoholic drinks per week is given below for adult men and women who drink. Complete parts (a) through (d) below.
Click the icon to view the data for drinks per week of adult men and women.
a. Compare the mean number of drinks for men and women.
The mean number of drinks for men is
The mean number of drinks for women is
The mean number of drinks for men is
than the mean number of drinks for women.
(Round to two decimal places as needed.)
Lower
b. Compare the standard deviation of the number of drinks of men and of women.
Higher
The standard deviation of the number of drinks for men is
The standard deviation of the number of drinks for women is
The standard deviation of the number of drinks for men is
than the standard deviation of the number of drinks for women.
(Round to two decimal places as needed.)
Lower
c. Remove the outliers of 70 and 47 drinks for the men, and compare the means again. What effect did removing the outliers have on the mean?
Higher
With the outliers removed, the new mean number of drinks for men is
The mean number of drinks for women is
The new mean number of drinks for men is
than the mean number of drinks for women.
(Round to two decimal places as needed.)
Lower
d. What effect do you think removing the two outliers would have on the standard deviation, and why?
Higher
A. With two outliers removed, the standard deviation will decrease. Removing two outliers eliminates two addends from the calculation, which necessarily decreases variation.
O B. With two outliers removed, the standard deviation will increase. Removing two outliers decreases the sample size, which leads to a greater standard deviation.
O C. With two outliers removed, the standard deviation will decrease. Since these values are farthest from the mean, their large contribution to the standard deviation would be removed.
O D. With two outliers removed, the standard deviation will increase. Each observation will have a greater impact on the standard deviation, so the standard deviation must be greater than or equal to its prior value.
Transcribed Image Text:Drinks per week for men and women
Men
Women
Men
Women
23
2
1
47
15
6.
4
15
10
6.
1
7
12
4
1
6
15
4
3
4
18
7
8.
9.
24
5
2
24
2
2
2
19
13
1
2
9
10
1
2
2
4
3
7
6
70
11
10
3
14
12
6.
7
6
10
6.
2
1
7
11
2
10
5
20
20
21
8.
14
10
20
2
3
9.
1
12
14
O CO
Expert Solution
Step 1
Since you have posted a question with multiple sub-parts, we will solve first three sub-
parts for you. To get remaining sub-part solved please repost the complete question and
mention the sub-parts to be solved.
(a)
Obtain the mean number of drinks for men.
Use EXCEL Procedure for finding the value of mean for men.
Follow the instruction to obtain the value of mean.
- Open EXCEL
- Go to Formula bar.
- In formula bar enter the function as“=AVERAGE”
- Enter the range as $A$1:$A$54
- Click enter.
EXCEL output:
From the EXCEL output, the value of the mean is 10.26
The value of mean number of drinks for men is 10.26.
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