Description
There are actually 9 problems broken down to individual components to identify key steps required to solve the problem. They appear as multiple chioce questions. For example the 1st 8 questions are dealing with one problem. |
1.8 points
QUESTION 2
1.8 points
QUESTION 3
1.8 points
QUESTION 4
1.9 points
QUESTION 5
1.9 points
QUESTION 6
1.9 points
QUESTION 7
1.9 points
QUESTION 8
1 points
QUESTION 9
1.8 points
QUESTION 10
1.9 points
QUESTION 11
1.9 points
QUESTION 12
1.9 points
QUESTION 13
1.9 points
QUESTION 14
1.9 points
QUESTION 15
1 points
QUESTION 16
1.9 points
QUESTION 17
1.9 points
QUESTION 18
1.9 points
QUESTION 19
1.9 points
QUESTION 20
1.9 points
QUESTION 21
1.9 points
QUESTION 22
1.9 points
QUESTION 23
1.9 points
QUESTION 24
1.9 points
QUESTION 25
1.9 points
QUESTION 26
1.9 points
QUESTION 27
1.9 points
QUESTION 28
1.9 points
QUESTION 29
1.9 points
QUESTION 30
1.9 points
QUESTION 31
1.9 points
QUESTION 32
1.9 points
QUESTION 33
1.9 points
QUESTION 34
1.9 points
QUESTION 35
1.9 points
QUESTION 36
1.5 points
QUESTION 37
1.9 points
QUESTION 38
1.9 points
QUESTION 39
1.9 points
QUESTION 40
1.9 points
QUESTION 41
1.9 points
QUESTION 42
1.9 points
QUESTION 43
1.9 points
QUESTION 44
1.9 points
QUESTION 45
1.9 points
QUESTION 46
1.9 points
QUESTION 47
1.9 points
QUESTION 48
1.9 points
QUESTION 49
1.9 points
QUESTION 50
1.9 points
QUESTION 51
1.9 points
QUESTION 52
1.9 points
QUESTION 53
1.9 points
QUESTION 54
Explanation & Answer
The solution is attached.Please, give me feedback.
QUESTION 1
.
The labor relations manager of a large corporation wished to study the absenteeism
among workers at the company's central office during the last year. A random sample
of 25 workers revealed the following: an average of 9.7 days; a standard deviation of
4.0 days; and 12 employees were absent more than 10 days. In estimating a 95%
confidence interval estimate of the average number of days absent for the company's
workers last year what will be the standard error?
.
4.0
.16
.80
.025
.
1.8 points
QUESTION 2
.
The labor relations manager of a large corporation wished to study the absenteeism
among workers at the company's central office during the last year. a random sample
of 25 workers revealed the following: an average of 9.7 days; a standard deviation of
4.0 days; and 12 employees were absent more than 10 days. In estimating a 95%
confidence interval estimate of the average number of days absent for the company's
workers last year should you use a z or t value in the formula?
.
z
t
.
1.8 points
QUESTION 3
.
The labor relations manager of a large corporation wished to study the absenteeism
among workers at the company's central office during the last year. a random sample
of 25 workers revealed the following: an average of 9.7 days; a standard deviation of
4.0 days; and 12 employees were absent more than 10 days. In estimating a 95%
confidence interval estimate of the average number of days absent for the company's
workers last year what would be the value of your UPPER limit?
.
17.96
10.03
11.35
8.049
.
1.8 points
QUESTION 4
.
The labor relations manager of a large corporation wished to study the absenteeism
among workers at the company's central office during the last year. a random sample
of 25 workers revealed the following: an average of 9.7 days; a standard deviation of
4.0 days; and 12 employees were absent more than 10 days. In estimating the 95%
confidence interval estimate of the proportion of workers absent more than 10 days
last year what is the sample proportion used in the formula?
.
.12
.10
.48
040
.
1.9 points
QUESTION 5
.
The labor relations manager of a large corporation wished to study the absenteeism
among workers at the company's central office during the last year. a random sample
of 25 workers revealed the following: an average of 9.7 days; a standard deviation of
4.0 days; and 12 employees were absent more than 10 days. In estimating the 95%
confidence interval estimate of the proportion of workers absent more than 10 days
last year would you use a z or t in the formula?
.
z
t
.
1.9 points
QUESTION 6
.
The labor relations manager of a large corporation wished to study the absenteeism
among workers at the company's central office during the last year. a random sample
of 25 workers revealed the following: an average of 9.7 days; a standard deviation of
4.0 days; and 12 employees were absent more than 10 days. In estimating the 95%
confidence interval estimate of the proportion of workers absent more than 10 days
last year what is the value of the Z used in the formula?
.
1.708
1.711
1.65
1.96
1.9 points
QUESTION 7
The labor relations manager of a large corporation wished to study the absenteeism
among workers at the company's central office during the last year. a random sample
of 25 workers revealed the following: an average of 9.7 days; a standard deviation of
4.0 days; and 12 employees were absent more than 10 days. In estimating the 95%
confidence interval estimate of the proportion of workers absent more than 10 days
last year what is the upper limit of the confidence interval?
.
.516
.6445
.284
.676
.
1.9 points
QUESTION 8
.
You are considering investing in a company. The company claims for the past few
years the average monthly return on such an investment has been $870 with a
standard deviation of $50. You sample 30 investors and determine the sample average
return to be $855. Using a .05 level of significance you will test to determine if there
is evidence that the true average return is different from $870. Is this a 1 or 2 tail test?
.
1 tail
2 tail
indeterminate
none of the above
1 points
QUESTION 9
.
You are considering investing in a company. The company claims for the past few
years the average monthly return on such an investment has been $870 with a
standard deviation of $50. You sample 30 investors and determine the sample average
return to be $855. Using a .05 level of significance you will test to determine if there
is evidence that the true average return is different from $870. What are your critical
values?
.
+- 1.65
+- 2.045
+-1.96
+-1.65
.
1.8 points
QUESTION 10
.
You are considering investing in a company. The company claims for the past few
years the average monthly return on such an investment has been $870 with a
standard deviation of $50. You sample 30 investors and determine the sample average
return to be $855. Using a .05 level of significance you will test to determine if there
is evidence that the true average return is different from $870. What is the value of
your test statistic?
.
.30
-.30
8.98
-1.64
.
1.9 points
QUESTION 11
.
You are considering investing in a company. The company claims for the past few
years the average monthly return on such an investment has been $870 with a
standard deviation of $50. You sample 30 investors and determine the sample average
return to be $855. Using a .05 level of significance you will test to determine if there
is evidence that the true average return is different from $870. If your test statistic is
-1.64 what will be your decision?
.
Reject Ho
Reject H1
Do not reject H1
Do not reject Ho
.
1.9 points
QUESTION 12
.
You are considering investing in a company. The company claims for the past few
years the average monthly return on such an investment has been $870 with a
standard deviation of $50. You sample 30 investors and determine the sample average
return to be $855. Using a .05 level of significance you will test to determine if there
is evidence that the true average return is different from $870. What is your
conclusion?
.
There is evidence of a difference in the average return.
There is no evidence of a difference in the average return
Indeterminate
Inconclusive
1.9 points
QUESTION 13
A random sample of 400 college students was selected and 120 of them had at least
one motor vehicle accident in the previous two years. A random sample of 600 young
adults not enrolled in college was selected and 150 of them had at least one motor
vehicle accident in the previous two years. At t...