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Sample Size Determination
Page 2
Questions (89)
If you are interested in determining the average of a 3-minute telephone call to locations within the continental U.S. what
1 answer
asked by
Samantta
460 views
I saw that this was already answered but I can't find it if anyone knows, can you point me in the right direction?
A recent poll
3 answers
asked by
Andrea
999 views
How large a sample should be taken if the population mean is to be estimated with 99% confidence to within $72? The population
2 answers
asked by
ks
571 views
You plan to conduct a political poll of people in Berkeley, asking whether people prefer apples (A) or bananas (B). You have
1 answer
asked by
Anonymous
453 views
How do I go about tackling this problem?
(I made a problem-modifying typo in the first) The American Medical Association wishes
1 answer
asked by
Edward
505 views
If Sally gave a survey with five colors listed and ask each person who takes the survey to pick one color. She assumes that the
1 answer
asked by
j
258 views
A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained
4 answers
asked by
Zechariah
5,137 views
A nurse at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select if she
4 answers
asked by
Clifford
2,456 views
use the given information to find the minimum sample size required to estimate an unknown population mean. Margin of error/;
3 answers
asked by
susan
1,714 views
How large a sample should be surveyed to estimate the true proportion of college students who do laundry once a week within 3%
3 answers
asked by
Anonymous
1,560 views
In a preliminary study, the sample standard deviation for the duration of a particular
back pain suffered by patients was 18.0
3 answers
asked by
joe
1,482 views
An IQ test is designed so that the mean is 100 and the standard deviation is 19 for the population of normal adults. Find the
2 answers
asked by
Stephanie
1,330 views
An investigator wants to estimate caffeine consumption in high school students. How many students would be required to estimate
2 answers
asked by
Yvette
1,305 views
A new manager, hired at a large warehouse, was told to reduce the 26% employee sick leave. The manager introduced a new
1 answer
asked by
Penny
1,284 views
If the true population standard deviation was known to be 3.0, then approximately what minimum sample size would you need in a
1 answer
asked by
Marissa
1,170 views
A bank officer wants to determine the amount of the average total monthly deposits per customer at the bank. He believes an
1 answer
asked by
Jing Sun Q.
1,032 views
A music industry researcher wants to estimate, with a 90% confidence level, the proportion of young urban people (ages 21 to 35
1 answer
asked by
shane
959 views
According to a recent pole only 21% of Americans were satisfied with the direction the U.S. is heading. To investigate the
1 answer
asked by
Bill
839 views
Determine the minimum sample size required in order to be 95% confident that our estimate is within 4% of the true percent of
2 answers
asked by
mary
814 views
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between
1 answer
asked by
Vanessa
729 views
A researcher wishes to estimate, with 95% confidence, the proportion of adults who have high-speed internet access. Her estimate
1 answer
asked by
Anonymous
713 views
Use the given data to find the minimum sample size required to estimate a population proportion or percentage.
Margin of error:
2 answers
asked by
Rob
661 views
How large a sample of U.S. adults is needed in order to estimate U with a 95% confidence interval of length 1.2 hours?
3 answers
asked by
Pat
647 views
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between
1 answer
asked by
kiki
593 views
. A random sample is selected from a normal population with a mean of __40 and a standard deviation of __10. After a treatment
2 answers
asked by
Sharon
585 views
I took a large sample of households in a city, and based on that, estimate the standard deviation of the income for all
3 answers
asked by
Macy
571 views
You want to estimate the difference in grade point averages between two groups of university
students to be accurate within 0.2
2 answers
asked by
Bob
570 views
A manufacturer of a low-tar cigarette claims that their cigarettes contain an average of 16.3 mg of tar with a standard
2 answers
asked by
Angel
548 views
1. In developing patient appointment schedules, a medical center wants to estimate the mean time that a staff member spends with
2 answers
asked by
JYD
563 views
The population standard deviation is estimated to be $300. If a 98% confidence interval is used and an interval of +/-$75 is
2 answers
asked by
Angela
504 views
It is claimed that 60 percent of households now subscribe to cable TV. You would like to verify this statement for your class in
1 answer
asked by
jatou
501 views
Computer Services wants to estimate the mean number of hours college students use on campus computers each day. They want to be
2 answers
asked by
John Davis
491 views
A provincial politician would like to determine the average amount earned during summer employment by the provinces teenagers
2 answers
asked by
Maria Elizabeth
483 views
in order to estimate the mean amount of time computer users spend on the internet ea mn, how many people do i interview to have
1 answer
asked by
heather
457 views
Determine the sample size needed in order to be 95 percent confident the p, the sample proportion of HD television sets that
1 answer
asked by
Sierra
460 views
You want to estimate the grades of st2%atistics students who gets grades of C or better. How many students should you survey to
1 answer
asked by
ali
435 views
if random sample are selected from a normal population with a s=10 and the distrubtion of sample means has a standard error of
1 answer
asked anonymously
48 views
What is the minimum sample size required to estimate a population mean with 95℅ confidence when the desired margin of error is
1 answer
asked anonymously
29 views
this scenario, we have a larger group of individuals - the population - who all share a similar characteristic, which is that
1 answer
asked by
i hate bot
35 views
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Parent Categories (23)
Confidence Interval
Confidence interval estimation
Confidence intervals
Data collection and analysis
Estimation
Hypothesis Testing
Market Research
Mathematics/Statistics
Population proportion estimation
Research Methods
Sampling
Sampling and Confidence Intervals
Sampling and Estimation
Sampling Methods
Sampling Methods and Sample Sizes
Sampling Techniques
Statistical Estimation
Statistical Inference
Statistics
Study Design
Survey Design and Sampling
Survey Sampling
Surveys and Sampling