Question

A survey of 2315 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 416 have donated blood in the past two years. Complete parts (a)and (b) below. Click here to view the standard normal distribution table (page 1). LOADING... Click here to view the standard normal distribution table (page 2). LOADING... (a) Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years. ModifyingAbove p with caretequals nothing (Round to three decimal places as needed.) (b) Construct and interpret a 90 % confidence interval for the population proportion of adults in the country who have donated blood in the past two years. Select the correct choice below and fill in any answer boxes within your choice. (Type integers or decimals rounded to three decimal places as needed. Use ascending order.) A. We are nothing % confident the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between nothing and nothing. B. There is a nothing % chance the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between nothing and nothing.

Answer #1

The statistical software output for this problem is:

**One sample proportion summary confidence
interval:**

p : Proportion of successes

Method: Standard-Wald

**90% confidence interval results:**

Proportion |
Count |
Total |
Sample Prop. |
Std. Err. |
L. Limit |
U. Limit |
---|---|---|---|---|---|---|

p | 416 | 2315 | 0.17969762 | 0.0079796282 | 0.1665723 | 0.19282294 |

Hence,

a) Point estimate = 0.180

b) 90% confidence interval: (0.167, 0.193)

We are 90% confident the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between 0.167 and 0.193

A survey of 2282 adults in a certain large country aged 18 and
older conducted by a reputable polling organization found that 416
have donated blood in the past two years.
Obtain a point estimate for the population proportion of adults
in the country aged 18 and older who have donated blood in the past
two years. (Round to three decimal places as needed.)
Construct and interpret a 90% confidence interval for the
population proportion of adults in the country...

A survey of 2301 adults in a certain large country aged 18 and
older conducted by a reputable polling organization found that 406
have donated blood in the past two years.
construct and interpret 90% confidence interval for the
population proportion of adults in the country who have donated
blood in the past two years.
There is a 90% chance the proportion of adults in the country
aged 18 and older who have donated blood in the past two years...

A survey of 2322 adults in a certain large country aged 18 and
older conducted by a reputable polling organization found that 418
have donated blood in the past two years. Complete parts (a)
through (c) below.
a) Obtain a point estimate for the population proportion of
adults in the country aged 18 and older who have donated blood in
the past two years.
(b) Verify that the requirements for constructing a confidence
interval about p are satisfied.
(c) Construct...

a survey of 2280 adults in a certain large country aged 18 and
older conducted by a reputable polling organization found that 409
have donated blood in the past two years.
construct and interpret a 90% confidence interval for the
population proportion of adults in the country who have donated
blood in the past two years.

A survey of 2276 adults in a certain large country aged 18 and
older conducted by a reputable polling organization found that 409
have donated blood in the past two years. Complete parts (a)
through (c) below.
a) Obtain a point estimate for the population proportion of
adults in the country aged 18 and older who have donated blood in
the past two years. Modifying Above p with caret equals __ (Round
to three decimal places as needed.)
(b) Verify...

a survey of 2290 adults in a certain large country
aged 18 and older conducted by a reputable polling organization
found that 404 have donated blood in the past 2 years. complete
parts a through c.
a.) obtain a point estimate for the population proportion of adults
in the country aged 18 and older who have donated blood in the past
2 years.
b.) verify that the requirements for constructing a confidence
interveal about p are satisfied.
the sample____ a...

A survey of 2325 adults in a certain large country aged 18 and
older conducted by a reputable polling organization found that 423
have donated blood in the past two years.
construct and interpret a 90% confidence interval for the
population of adults in the country that have donated blood in the
past 2 years.
p=0.182

A random sample of 1016 adults in a certain large country was
asked? "Do you pretty much think televisions are a necessity or a
luxury you could do? without?" Of the 1016 adults? surveyed, 533
indicated that televisions are a luxury they could do without.
Complete parts? (a) through? (c) below. Click here to view the
standard normal distribution table (page 1). LOADING... Click here
to view the standard normal distribution table (page 2). LOADING...
?(a) Obtain a point estimate...

A random sample of 1021 adults in a certain large country was
asked "Do you pretty much think televisions are a necessity or a
luxury you could do without?" Of the 1021 adults surveyed, 511
indicated that televisions are a luxury they could do without.
Complete parts (a) through (c) below. Click here to view the
standard normal distribution table (page 1). LOADING... Click here
to view the standard normal distribution table (page 2). LOADING...
(a) Obtain a point estimate...

A random sample of 1028 adults in a certain large country was
asked "Do you pretty much think televisions are a necessity or a
luxury you could do without?" Of the 1028 adults surveyed, 528
indicated that televisions are a luxury they could do without.
Complete parts (a) through (e) below. Click here to view the
standard normal distribution table (page 1).LOADING... Click here
to view the standard normal distribution table (page 2).LOADING...
(a) Obtain a point estimate for the...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 39 minutes ago

asked 42 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago