Question

**In a survey of 1037 adults from the US age 65 and
over,643 were concern about getting flu.**

a) Find a point estimate for the population proportion P of those concerned about getting the flu.

b) Construct a 95% confidence interval for the population proportion. What does this interval say to you?

c) Find the minimum sample size needed to estimate the population proportion at the 99% confidence level in order to ensure that the estimate is accurate within 4% of the population proportion.

Answer #1

In a survey of 920 Canadian adults, 780 say that the energy
situation in Canada is very or fairly serious.
1. Find the point estimate for the population
proportion.
2. Construct a 95% confidence interval for the population
proportion.
(a) The critical value:
(b) The margin of error:
(c) The lower limit of the interval:
(d) The upper limit of the interval:
3. find the minimum sample size needed to estimate the
population proportion at the 99% confidence level in...

In a survey of 1060 Canadian adults, 770 say that the energy
situation in Canada is very or fairly serious.
1. Find the point estimate for the population proportion.
2. Construct a 95% confidence interval for the population
proportion.
(a) The critical value:
(b) The margin of error
(c) The lower limit of the interval:
(d) The upper limit of the interval:
3. find the minimum sample size needed to estimate the
population proportion at the 99% confidence level in...

In a survey of 1030 Canadian adults, 720 say that the energy
situation in Canada is very or fairly serious.
1. Find the point estimate for the population proportion.
2. Construct a 95% confidence interval for the population
proportion.
(a) The critical value:
(b) The margin of error:
(c) The lower limit of the interval:
(d) The upper limit of the interval:
3. find the minimum sample size needed to estimate the
population proportion at the 99% confidence level in...

In a survey of 1000 American adults age 60 and over, 420
received a flu shot. Construct a 99% confidence interval for the
proportion of all American adults age 60 and over receiving flu
shots. (Round confidence interval values to two decimal
places.)

In a survey of 1000 Canadian adults, 790 say that the energy
situation in Canada is very or fairly serious. 2. Construct a 95%
confidence interval for the population proportion (a) The critical
value: (b) The margin of error: (c) The lower limit of the
interval: (d) The upper limit of the interval: 3. find the minimum
sample size needed to estimate the population proportion at the 99%
confidence level in order to ensure that the estimate is accurate
within...

1. In a survey of 2383 U.S. adults, 1073 think that there should
be more government regulation of oil companies. (Adapted from
Harris Interactive)
(a) Find the point estimate for the population proportion p of
U.S. adults who think that there should be more government
regulation of oil companies.
(b) Construct a 95% confidence interval for the population
proportion. Interpret the results.
(c) Find the minimum sample size needed to estimate the
population proportion at the 99% confidence level in...

In a survey, 376 out of 1,078 US adults said they drink at least
4 cups of coffee a day. Find a point estimate (P) for the
population proportion of US adults who drink at least 4 cups of
coffee a day, then construct a 99% confidence interval for the
proportion of adults who drink at least 4 cups of coffee a day

In a survey of 3367 adults, 1492 say they have started paying
bills online in the last year. Construct a 99% confidence interval
for the population proportion. Interpret the results. A 99%
confidence interval for the population proportion is

In
a survey of 1022 US Adults, 779 think the US should put more
enphasis on producing energy from solar power.
a.
Find the point of estimate for the population p of US adults
whothink rhat there should be more governmental emphasis on solar
power. Round to 3 decimal places.
b.
construct a 90% confidence interval fir the population
proportion. Interpret your results.

In a survey of 2671 adults,1465 say they have started paying
bills online in the last year.
Construct a 99% confidence interval for the population
proportion. Interpret the results.
A 99% confidence interval for the population proportion is
(__,__).

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