Question
In: Statistics and Probability
Older people often have a hard time finding work. AARP reported on the number of weeks...
Older people often have a hard time finding work. AARP reported on the number of weeks it takes a worker aged 55 plus to find a job. The data on number of weeks spent searching for a job are contained in the Excel Online file below. Construct a spreadsheet to answer the following questions.
Confidence Level: 0.95
Job Search Time (Weeks):
| 10 |
| 50 |
| 7 |
| 3 |
| 10 |
| 17 |
| 6 |
| 27 |
| 1 |
| 14 |
| 19 |
| 11 |
| 13 |
| 2 |
| 0 |
| 40 |
| 6 |
| 16 |
| 52 |
| 25 |
| 44 |
| 24 |
| 22 |
| 7 |
| 39 |
| 11 |
| 9 |
| 24 |
| 44 |
| 42 |
| 24 |
| 46 |
| 24 |
| 19 |
| 30 |
| 13 |
| 10 |
| 28 |
| 33 |
| 5 |
A. At 95% confidence, what is the margin of error? Please round the answer to four decimal places
B. What is the 95% confidence interval estimate of the mean? Please round the answer to two decimal places.
Solutions
Expert Solution
Find sampe mean and standard deviation:
Formula Ref:
Confidence interval: (Refer column F for detailed formula used for calculation)
margin of error: 4.5822
95% confidence interval estimate of the mean:
Lower limit: 16.09
Upper limit: 25.26
orchestra answered 3 years agoRelated Solutions
Older people often have a hard time finding work. AARP reported on the number of weeks...
Older people often have a hard time finding work. AARP reported
on the number of weeks it takes a worker aged 55 plus to find a
job. The data on number of weeks spent searching for a job
contained in the table below. 17 0 0 28 18 37 7 13 33 0 24 50 4 48
5 19 3 25 2 29 4 8 8 32 1 27 7 47 6 0
a. Provide a point estimate of the...
Older people often have a hard time finding work. AARP reported on the number of weeks...
Older people often have a hard time finding work. AARP reported
on the number of weeks it takes a worker aged plus to
find a job. The data on number of weeks spent searching for a job
contained in the table below.
a. Provide a point estimate of the population
mean number of weeks it takes a worker aged plus to find
a job. Round the answer to two decimal places.
weeks
b. At confidence, what is the margin
of error? Round the...
Older people often have a hard time finding work. AARP reported on the number of weeks...
Older people often have a hard time finding work. AARP reported
on the number of weeks it takes a worker aged plus to find a job.
The data on number of weeks spent searching for a job contained in
the table below.
1 31 48 3 8 30 34 13 15 35 8 6 44 29 16 20 4 27 22 14 18 17 14
40 17 7 48 45 9 24 9 11 39 11 5 51 16 28...
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