Question
In: Math
Based on data from a statistical abstract, only about 15% of senior citizens (65 years old...
Based on data from a statistical abstract, only about 15% of senior citizens (65 years old or older) get the flu each year. However, about 30% of the people under 65 years old get the flu each year. In the general population, there are 13.5% senior citizens (65 years old or older). (Round your answers to three decimal places.)
(a) What is the probability that a person selected at random
from the general population is senior citizen who will get the flu
this season?
(b) What is the probability that a person selected at random from
the general population is a person under age 65 who will get the
flu this year?
(c) Repeat parts (a) and (b) for a community that has 88% senior citizens. A: B:
(d) Repeat parts (a) and (b) for a community that has 51% senior citizens.A: B:
Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.)
Solutions
milcah answered 1 year agoRelated Solutions
Based on data from a statistical abstract, only about 20% of senior citizens (65 years old...
Based on data from a statistical abstract, only about 20% of
senior citizens (65 years old or older) get the flu each year.
However, about 28% of the people under 65 years old get the flu
each year. In the general population, there are 12% senior citizens
(65 years old or older). (Round your answers to three decimal
places.)
(a) What is the probability that a person selected at random
from the general population is senior citizen who will get...
Based on data from a statistical abstract, only about 18% of senior citizens (65 years old...
Based on data from a statistical abstract, only about 18% of
senior citizens (65 years old or older) get the flu each year.
However, about 28% of the people under 65 years old get the flu
each year. In the general population, there are 15% senior citizens
(65 years old or older). (Round your answers to three decimal
places.)
(a) What is the probability that a person selected at random
from the general population is senior citizen who will get...
Based on data from a statistical abstract, only about 13% of senior citizens (65 years old...
Based on data from a statistical abstract, only about 13% of
senior citizens (65 years old or older) get the flu each year.
However, about 28% of the people under 65 years old get the flu
each year. In the general population, there are 12% senior citizens
(65 years old or older). (Round your answers to three decimal
places.)
(a) What is the probability that a person selected at random
from the general population is senior citizen who will get...
Based on data from the Statistical Abstract of the United States, 112th Edition, only about 20%...
Based on data from the Statistical Abstract of the United
States, 112th Edition, only about 20% of senior citizens (65
years old or older) get the flu each year. However, about 32% of
the people under 65 years old get the flu each year. In the general
population, there are 15% senior citizens (65 years old or
older).
(a) What is the probability that a person selected at random
from the general population is senior citizen who will get the...
Facebook has become a very popular website among senior citizens. A random sample of 65 senior...
Facebook has become a very popular website among senior
citizens. A random sample of 65 senior Americans showed a sample
average of 189 friends with a sample standard deviation of 25
friends. Estimate the number of Facebook friends senior Americans
have in a 99% confidence interval.
(Do not use direct steps)
In a certain city, 15% of senior citizens have used Uber. To see if an advertising...
In a certain city, 15% of senior citizens have used Uber. To see
if an advertising campaign was effective, a researcher samples 200
senior citizens and finds that 40 have used Uber. Testing at
significance level α = .05, find:
H0 and Ha:
Sample proportion =
Standard error (S.E.) assuming H0 is true =
z-value =
p-value =
Conclusion:
Group of answer choices
do not reject H0
50-50 chance advertising campaign was effective
.05 chance advertising campaign was effective
reject...
Using data from such publications as the Statistical Abstract of the United States, Forbes, or any news source, give
Using data from such publications as the Statistical Abstract of the United States, Forbes, or any news source, give examples of variables measured with nominal, ordinal, interval, and ratio scales.
Using data from such publications as the Statistical Abstract of the United States, Forbes, or any news source, give
Using data from such publications as the Statistical Abstract of the United States, Forbes, or any news source, give examples of variables measured with nominal, ordinal, interval, and ratio scales.
Problem 15-6 (LG 15-2) a. Suppose a 65-year-old person wants to purchase an annuity from an...
Problem 15-6 (LG 15-2)
a. Suppose a 65-year-old person wants to
purchase an annuity from an insurance company that would pay
$22,000 per year until the end of that person’s life. The insurance
company expects this person to live for 15 more years and would be
willing to pay 7 percent on the annuity. How much should the
insurance company ask this person to pay for the annuity?
b. A second 65-year-old person wants the same
$22,000 annuity, but this...
A client, 35 years old, who would like to retire at age 65 (30 years from...
A client, 35 years old, who would like to retire at age 65 (30
years from today). Her goal is to have enough in her retirement
account to provide an income of $75,000 a year, starting a year
after retirement or year 31, for 25 years thereafter. She had a
late start on saving for retirement, with a current balance of
$10,000. To catch up, she is now committed to saving $5,000 a year,
with the first contribution a year...
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