Question
In: Statistics and Probability
a companys workforce of 10000 workers was randomly sampled by aunion organizer; the sample of...
a companys workforce of 10000 workers was randomly sampled by a
union organizer; the sample of 25 workers gave a 95% confidence
interval for the mean income(annual): $20000 plus minus $3,000.
What is the 95 confience interval for the total payproll (total
income of all10,000 workers)
a. 200000000 plus minus 30000000
b. 200000000 plus minus 15000
c. cannot be determined from this data
d. 200000000 plus minus 300000
Solutions
Expert Solution
200000000 plus minus 3000000 (a)
[ explanation:-
theory:-
a 95% confidence interval of population mean = 
the 95% confidence interval for total observations (n) is =
***SOLUTION TO THE PROBLEM ***
the 95% confidence interval for the mean income(annual) is :-
the 95 % confidence interval for the total payroll (total income of all 10,000 workers) is:-
[ here, n = 10000]
]
orchestra answered 2 years agoRelated Solutions
A population proportion is 0.57. Suppose a random sample of 663 items is sampled randomly from...
A population proportion is 0.57. Suppose a random sample of 663
items is sampled randomly from this population.
a. What is the probability that the sample
proportion is greater than 0.59?
b. What is the probability that the sample
proportion is between 0.52 and 0.59?
c. What is the probability that the sample
proportion is greater than 0.55?
d. What is the probability that the sample
proportion is between 0.52 and 0.53?
e. What is the probability that the sample...
A population proportion is 0.59. Suppose a random sample of 663 items is sampled randomly from...
A population proportion is 0.59. Suppose a random sample of 663
items is sampled randomly from this population. Appendix A
Statistical Tables a. What is the probability that the sample
proportion is greater than 0.60? b. What is the probability that
the sample proportion is between 0.54 and 0.64? c. What is the
probability that the sample proportion is greater than 0.57? d.
What is the probability that the sample proportion is between 0.52
and 0.55? e. What is the...
A population proportion is 0.60. Suppose a random sample of 660 items is sampled randomly from...
A population proportion is 0.60. Suppose a random sample of 660
items is sampled randomly from this population. Appendix A
Statistical Tables a. What is the probability that the sample
proportion is greater than 0.62? b. What is the probability that
the sample proportion is between 0.56 and 0.62? c. What is the
probability that the sample proportion is greater than 0.59? d.
What is the probability that the sample proportion is between 0.58
and 0.59? e. What is the...
A population proportion is 0.59. Suppose a random sample of 661 items is sampled randomly from...
A population proportion is 0.59. Suppose a random sample of 661
items is sampled randomly from this population.
a. What is the probability that the sample proportion is greater
than 0.60?
b. What is the probability that the sample proportion is between
0.57 and 0.60?
c. What is the probability that the sample proportion is greater
than 0.57?
d. What is the probability that the sample proportion is between
0.53 and 0.56?
e. What is the probability that the sample...
A manufacturer of sports drink has randomly sampled 198 men and 202 women. Each sampled participant...
A manufacturer of sports drink has randomly sampled 198 men and
202 women.
Each sampled participant was asked to taste an unflavored
version and a flavored version of new sports drink currently in
development.
The participants preferences are shown in table.
Flavored
UnFlavored
Total
Men
101
97
Women
68
134
Total
1. State the null and alternative hypothesis.
2. Conduct the appropriate test and state a conclusion with the
significance level alpha=0.01
In a clinical trial of a? vaccine, 10000 children were randomly divided into two groups. The...
In a clinical trial of a? vaccine, 10000 children were randomly
divided into two groups. The subjects in group 1? (the
experimental? group) were given the vaccine while the subjects in
group 2? (the control? group) were given a placebo. Of the 5000
children in the experimental? group, 74 developed the disease. Of
the 5000 children in the control? group, 107 developed the disease.
Determine whether the proportion of subjects in the experimenta
group who contracted the disease is less...
A survey of 25 randomly sampled judges employed by the state of Florida found that they...
A survey of 25 randomly sampled judges employed by the state of
Florida found that they earned an average wage (including benefits)
of $59.00 per hour. The sample standard deviation was $6.05 per
hour. (Use t Distribution Table.)
What is the best estimate of the population mean?
Develop a 99% confidence interval for the population mean wage
(including benefits) for these employees. (Round your
answers to 2 decimal places.)
How large a sample is needed to assess the population mean...
A survey of 25 randomly sampled judges employed by the state of Florida found that they...
A survey of 25 randomly sampled judges employed by the state of
Florida found that they earned an average wage (including benefits)
of $67.00 per hour. The sample standard deviation was $5.75 per
hour.
What is the best estimate of the population mean?
Develop a 95% confidence interval for the population mean wage
(including benefits) for these employees. (Round your
answers to 2 decimal places.)
How large a sample is needed to assess the population mean with
an allowable error...
In a city of 80,000 households, 800 were randomly sampled in a marketing survey by an...
In a city of 80,000 households, 800 were randomly sampled in a
marketing survey by an auto manufacturer. To see how typical this
city was, some statistics were collected: the average number of
cars per household was 1.32, while the standard deviation for the
number of cars per household was 0.8. Construct a 95% confidence
interval for the average number of cars per household in the whole
city.
A survey of 20 randomly sampled judges employed by the state of Florida found that they...
A survey of 20
randomly sampled judges employed by the state of Florida found that
they earned an average wage (including benefits) of $63.00 per
hour. The sample standard deviation was $5.90 per hour. (Use
t Distribution Table.)
What is the best estimate of the population mean?
Develop a 98% confidence interval for the population mean wage
(including benefits) for these employees. (Round
your answers to 2 decimal places.)
Confidence interval
for the population mean wage is between and
How...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Suppose we are thinking about replacing an old computer with a new one. The old one...
- The project has a critical path that is 4 months long. We are now part way...
- Consider the following hypothetical microprocessor. Assume this processor uses 32-bit instructions. Assume the 32 bits are...
- C Programing How would i edit this code to have it return the cipher text. void...
- What are some ways that a company could fail at trying to become a glocalized business?
- MATLAB Create a 2 × 3 matrix variable mat. Pass this matrix variable to each of...
- Paste Corporation has established new plant for the production of new product called “Diazinon”. There are...
ADVERTISEMENT