Question

Normal Approximation to the Binomial Distribution: In a recent survey, we found that 85% of adults like chocolate. Suppose we take a sample of 200 adults. (a) What is the probability that at least 175 adults like chocolate? (b) What is the probability that at most 168 adults like chocolate? (c) What is the probability that between 167 and 177 adults, inclusive, like chocolate?

Answer #1

A survey of adults ages 18-29 found that 85% use the Internet.
You randomly select 157 adults ages 18-29 and ask them if they use
the Internet. (a) Find the probability that exactly 134 people say
they use the Internet. (b) Find the probability that at least 134
people say they use the Internet. (c) Find the probability that
fewer than 134 people say they use the Internet. (d) Are any of
the probabilities in parts (a)-(c) unusual? Explain. Use...

A pair of dice is rolled 240 times. Use the normal approximation
to binomial distribution the probability that a total of 7
occurs
(a) at least 35 times?
(b) between 36 and 44 times inclusive?
(c) exactly 40 times?

A recent survey found that 70% of all adults over 50
wear glasses for driving. in a random sample of 12 adults over 50,
what is the probability that at least seven wear glasses?

Use the normal distribution to approximate the following
binomial distribution. A recent survey indicated that 55% of the
people in a certain town have satellite television. If 35 people
from this town are chosen at random, what is the probability that
fewer than 21 have satellite television?
a-0.6915
b-0.6628
c-0.7486
d-0.7224
e-0.5987

Use the normal distribution to approximate the following
binomial distribution. A recent survey indicated that 55% of the
people in a certain town have satellite television. If 35 people
from this town are chosen at random, what is the probability that
fewer than 22 have satellite television?
a) 0.8238
b) 0.7967
c) 0.8413
d) 0.7764
e) 0.7224
f) None of the above.

Use the normal distribution to approximate the following
binomial distribution. A recent survey indicated that 55% of the
people in a certain town have satellite television. If 35 people
from this town are chosen at random, what is the probability that
fewer than 24 have satellite television?
a) 0.9332
b) 0.8980
c) 0.9525
d) 0.9463
e) 0.9251
f) None of the above.

Decide whether you can use the normal distribution to
approximate the binomial distribution. If you can, use the normal
distribution to approximate the indicated probabilities and sketch
their graphs. If you cannot, explain why and use the binomial
distribution to find the indicated probabilities.
A survey of adults found that 56% of those who text on cell
phones receive spam or unwanted messages. You randomly select 100
adults who text on cell phones.
a-Find the probability that the number of...

A recent Gallup Poll found that 95% of American adults are
"satisfied with their personal life."
Suppose you take a random sample of 5 Americans and ask each one
if they are "satisfied with their personal life" and record the
number who report personal life satisfaction. Use this experiment
to answer the following questions. Round solutions to four decimal
places, if necessary.
a. Create a binomial probability distribution (table) for this
experiment.
b. Calculate the mean of the binomial distribution....

In a survey of 3396 adults aged 57 through 85 years, it was
found that 82.2% of them used at least one prescription
medication. Complete parts (a) through (c) below.
A. How many of the 3396 subjects used at least one prescription
medication?
B. Construct a 90% confidence interval estimate of the
percentage of adults aged 57 through 85 years who use at least one
prescription medication.
?% <p< ?%
(Round to one decimal place as needed.)
Choose One: A,...

1) A survey of recent first-time home buyers found that 45% of
them plan to upgrade to a bigger house within 5 years. You randomly
select 30 recent first-time home buyers and ask them whether they
plan to upgrade to a bigger home within 5 years.
Determine if we can use the normal approximation to
the binomial distribution. What is the standard deviation that we
will use for this approximation? Round your answer to the tenths
place.

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 9 minutes ago

asked 29 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 2 hours ago

asked 2 hours ago

asked 2 hours ago