A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think the...
A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think the president of their country can control the price of gasoline. Her estimate must be accurate within 3% of the true proportion.
a) No preliminary estimate is available. Find the minimum sample size needed.
b) Find the minimum sample size needed, using a prior study that found that 44% of the respondents said they think their president can control the price of gasoline.
c) Compare the results from parts (a) and (b).
Homework Answers
Add Answer to:
A researcher wishes to estimate, with 90% confidence, the
population proportion of adults who think the...
A researcher wishes to estimate with 95% confidence, the population proportion of adults who think the...
A researcher wishes to estimate with 95% confidence, the population proportion of adults who think the president of heir country can control the price of gasoline. Her estimate must be accurate w in 4% of the true proportion. a) No preliminary estimate is available. Find the minimum sample sze needed b) Find the minimum sample size needed, using a prior study that found that 34% of the respondents said they think their president can control the price of gasoline. c)...
A researcher wishes to estimate, with 99% confidence, the population proportion of adults who think Congress...
A researcher wishes to estimate, with 99% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 2% of the true proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 18% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the results from...
A researcher wishes to estimate, with 99% confidence, the population proportion of a) No preliminary estimate...
A researcher wishes to estimate, with 99% confidence, the population proportion of a) No preliminary estimate is available Find the minimum b i F ind the minimum sapi·sue needed using a prior study that found that 32% of the respondents said they think their president c) Compare the results from parts (a) and (b) who think the president of their country can control the price of gasoline Her estimate must be accurate within 4% ofthe tw proportio control the price...
A researcher wishes to estimate with 90% confidence the population proportion of adults who think Congress...
A researcher wishes to estimate with 90% confidence the population proportion of adults who think Congress is doing a good or excellent job Herestimate must be accurate within 1% of the true proportion (a) No preliminary mate vale. Find the sample size needed b) Find the minimum samplese needed, using a prior study that found that 25% of the respondents said they think Congress is doing a good or excellent job (c) Compare the results from parts (a) and (b)...
A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a...
A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 5% of the true proportior (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 38% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the results from...
17 n A researcher wishes to estimate, with 90% confidence, the population proportion of adults who...
17
n A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 4% of the true proportion (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 22% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the...
A researcher wishes to estimate, with 99% confidence, the population proportion of adults who say chocolate...
A researcher wishes to estimate, with 99% confidence, the population proportion of adults who say chocolate is their favorite ice cream flavor. Her estimate must be accurate within two% of the population proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 44% of the respondents said their favorite flavor of ice cream is chocolate. (c) Compare the results from parts (a) and...
A researcher wishes to estimate, with 99% confidence, the population proportion of adults who support labeling...
A researcher wishes to estimate, with 99% confidence, the population proportion of adults who support labeling legislation for genetically modified organisms (GMOs). Her estimate must be accurate within 6% of the true proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 83% of the respondents said they support labeling legislation for GMOs. (c) Compare the results from parts (a) and (b).
A researcher wishes to? estimate, with 9090?% ?confidence, the population proportion of adults who say chocolate...
A researcher wishes to? estimate, with 9090?% ?confidence, the population proportion of adults who say chocolate is their favorite ice cream flavor. Her estimate must be accurate within 33?% of the population proportion. ?(a) No preliminary estimate is available. Find the minimum sample size needed. ?(b) Find the minimum sample size? needed, using a prior study that found that 4444?% of the respondents said their favorite flavor of ice cream is chocolate. ?(c) Compare the results from parts? (a) and?...
n= A researcher wishes to estimate, with 90% confidence, the population proportion of adults who support...
n= A researcher wishes to estimate, with 90% confidence, the population proportion of adults who support labeling legislation for genetically modified organisms (GMOs). Her estimate must be accurate within 5% of the true proportion a) No preliminary estimate is available. Find the minimum sample size needed () Find the minimum sample size nooded, using a prior study that found that 76% of the respondents said they support labeling legislation for GMOs (c) Compare the results from parts (a) and (b)....
A researcher wishes to estimate with 95% confidence, the population proportion of adults who think the president of heir country can control the price of gasoline. Her estimate must be accurate w in 4% of the true proportion. a) No preliminary estimate is available. Find the minimum sample sze needed b) Find the minimum sample size needed, using a prior study that found that 34% of the respondents said they think their president can control the price of gasoline. c)...
A researcher wishes to estimate, with 99% confidence, the population proportion of a) No preliminary estimate is available Find the minimum b i F ind the minimum sapi·sue needed using a prior study that found that 32% of the respondents said they think their president c) Compare the results from parts (a) and (b) who think the president of their country can control the price of gasoline Her estimate must be accurate within 4% ofthe tw proportio control the price...
A researcher wishes to estimate with 90% confidence the population proportion of adults who think Congress is doing a good or excellent job Herestimate must be accurate within 1% of the true proportion (a) No preliminary mate vale. Find the sample size needed b) Find the minimum samplese needed, using a prior study that found that 25% of the respondents said they think Congress is doing a good or excellent job (c) Compare the results from parts (a) and (b)...
A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 5% of the true proportior (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 38% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the results from...
17
n A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 4% of the true proportion (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 22% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the...
A researcher wishes to estimate, with 99% confidence, the population proportion of adults who support labeling legislation for genetically modified organisms (GMOs). Her estimate must be accurate within 6% of the true proportion. (a) No preliminary estimate is available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 83% of the respondents said they support labeling legislation for GMOs. (c) Compare the results from parts (a) and (b).
n= A researcher wishes to estimate, with 90% confidence, the population proportion of adults who support labeling legislation for genetically modified organisms (GMOs). Her estimate must be accurate within 5% of the true proportion a) No preliminary estimate is available. Find the minimum sample size needed () Find the minimum sample size nooded, using a prior study that found that 76% of the respondents said they support labeling legislation for GMOs (c) Compare the results from parts (a) and (b)....
Most questions answered within 3 hours.
-
A resistor and the capacitor are used to control the timing in
the RC circuit of...
asked 9 minutes ago -
Five moles of monatomic ideal gas have initial pressure 2.50 ×
103 Pa and initial volume...
asked 9 minutes ago -
Living in a group could bring several disadvantages to an
individual. What are some of the...
asked 26 minutes ago -
Complete and balance the following reactions. In case of no
reaction occurring write NR.
Mix #1:...
asked 32 minutes ago -
If an economy consumes 75% of any increase in income, then an
increase in autonomous investment...
asked 35 minutes ago -
A shotputter throws the shot with an initial speed of 15.8 m/s
at a 38.0 ∘...
asked 51 minutes ago -
Debra and Merina sell electronic equipment and supplies through
their partnership. They wish to expand their...
asked 51 minutes ago -
How does a linear regression allow you to better estimate
trends, costs, and other factors in...
asked 59 minutes ago -
1. (15%) Describe the difference between a pull (Kanban), push
and CONWIP production systems.
asked 56 minutes ago -
QUESTION 5
The total area under the Z distribution curve is equal to:
a.
10
b....
asked 1 hour ago -
Using Python
The variables x and y refer to numbers. Write a code segment
that prompts...
asked 1 hour ago -
If
the coefficient of static friction between a box and the floor is
0.35 with what...
asked 1 hour ago